Home / 4,155.85-5,734.47-2,387.12

Finding the Fourth Proportional to 4,155.85, 5,734.47 and 2,387.12

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Solution

The fourth proportional to 4,155.85, 5,734.47 and 2,387.12 is: 3,293.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,155.85 : 5,734.47 = 2,387.12 : x
  2. Step 2: Convert to fraction form
    4,155.85/5,734.47 = 2,387.12/x
  3. Step 3: Cross multiply
    4,155.85x = 5,734.47 × 2,387.12
  4. Step 4: Simplify right side
    4,155.85x = 13,688,839.35
  5. Step 5: Solve for x
    x = 13,688,839.35/4,155.85
  6. Step 6: Final answer
    x = 3,293.87

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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.