Home / 3,426.48-4,728.69-1,935

Finding the Fourth Proportional to 3,426.48, 4,728.69 and 1,935

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Solution

The fourth proportional to 3,426.48, 4,728.69 and 1,935 is: 2,670.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.48 : 4,728.69 = 1,935 : x
  2. Step 2: Convert to fraction form
    3,426.48/4,728.69 = 1,935/x
  3. Step 3: Cross multiply
    3,426.48x = 4,728.69 × 1,935
  4. Step 4: Simplify right side
    3,426.48x = 9,150,015.15
  5. Step 5: Solve for x
    x = 9,150,015.15/3,426.48
  6. Step 6: Final answer
    x = 2,670.38

Related Problems

Find fourth proportional to 1,713.24, 2,364.35 and 967.50
Half scale
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Double scale
Find fourth proportional to 3,427.48, 4,730.07 and 1,936
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.