Home / 5,419.71-7,479.32-3,061.85

Finding the Fourth Proportional to 5,419.71, 7,479.32 and 3,061.85

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Solution

The fourth proportional to 5,419.71, 7,479.32 and 3,061.85 is: 4,225.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.71 : 7,479.32 = 3,061.85 : x
  2. Step 2: Convert to fraction form
    5,419.71/7,479.32 = 3,061.85/x
  3. Step 3: Cross multiply
    5,419.71x = 7,479.32 × 3,061.85
  4. Step 4: Simplify right side
    5,419.71x = 22,900,503.24
  5. Step 5: Solve for x
    x = 22,900,503.24/5,419.71
  6. Step 6: Final answer
    x = 4,225.41

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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.