Home / 1,848.75-2,551.28-1,020.75

Finding the Fourth Proportional to 1,848.75, 2,551.28 and 1,020.75

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Solution

The fourth proportional to 1,848.75, 2,551.28 and 1,020.75 is: 1,408.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,848.75 : 2,551.28 = 1,020.75 : x
  2. Step 2: Convert to fraction form
    1,848.75/2,551.28 = 1,020.75/x
  3. Step 3: Cross multiply
    1,848.75x = 2,551.28 × 1,020.75
  4. Step 4: Simplify right side
    1,848.75x = 2,604,213.96
  5. Step 5: Solve for x
    x = 2,604,213.96/1,848.75
  6. Step 6: Final answer
    x = 1,408.64

Related Problems

Find fourth proportional to 924.38, 1,275.64 and 510.38
Half scale
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Double scale
Find fourth proportional to 1,849.75, 2,552.66 and 1,021.75
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.