Home / 5,419.31-7,479.88-3,432.58

Finding the Fourth Proportional to 5,419.31, 7,479.88 and 3,432.58

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Solution

The fourth proportional to 5,419.31, 7,479.88 and 3,432.58 is: 4,737.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.31 : 7,479.88 = 3,432.58 : x
  2. Step 2: Convert to fraction form
    5,419.31/7,479.88 = 3,432.58/x
  3. Step 3: Cross multiply
    5,419.31x = 7,479.88 × 3,432.58
  4. Step 4: Simplify right side
    5,419.31x = 25,675,259.21
  5. Step 5: Solve for x
    x = 25,675,259.21/5,419.31
  6. Step 6: Final answer
    x = 4,737.74

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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.