Home / 3,923.40-5,411.28-2,432.08

Finding the Fourth Proportional to 3,923.40, 5,411.28 and 2,432.08

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Solution

The fourth proportional to 3,923.40, 5,411.28 and 2,432.08 is: 3,354.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,923.40 : 5,411.28 = 2,432.08 : x
  2. Step 2: Convert to fraction form
    3,923.40/5,411.28 = 2,432.08/x
  3. Step 3: Cross multiply
    3,923.40x = 5,411.28 × 2,432.08
  4. Step 4: Simplify right side
    3,923.40x = 13,160,665.86
  5. Step 5: Solve for x
    x = 13,160,665.86/3,923.40
  6. Step 6: Final answer
    x = 3,354.40

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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.