Home / 3,937.32-5,432.76-2,445.60

Finding the Fourth Proportional to 3,937.32, 5,432.76 and 2,445.60

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Solution

The fourth proportional to 3,937.32, 5,432.76 and 2,445.60 is: 3,374.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.32 : 5,432.76 = 2,445.60 : x
  2. Step 2: Convert to fraction form
    3,937.32/5,432.76 = 2,445.60/x
  3. Step 3: Cross multiply
    3,937.32x = 5,432.76 × 2,445.60
  4. Step 4: Simplify right side
    3,937.32x = 13,286,357.86
  5. Step 5: Solve for x
    x = 13,286,357.86/3,937.32
  6. Step 6: Final answer
    x = 3,374.47

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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.