Home / 1,648.81-2,275.38-1,125.01

Finding the Fourth Proportional to 1,648.81, 2,275.38 and 1,125.01

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Solution

The fourth proportional to 1,648.81, 2,275.38 and 1,125.01 is: 1,552.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,648.81 : 2,275.38 = 1,125.01 : x
  2. Step 2: Convert to fraction form
    1,648.81/2,275.38 = 1,125.01/x
  3. Step 3: Cross multiply
    1,648.81x = 2,275.38 × 1,125.01
  4. Step 4: Simplify right side
    1,648.81x = 2,559,813.88
  5. Step 5: Solve for x
    x = 2,559,813.88/1,648.81
  6. Step 6: Final answer
    x = 1,552.53

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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.