Home / 5,418.85-7,470.60-3,428.41

Finding the Fourth Proportional to 5,418.85, 7,470.60 and 3,428.41

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Solution

The fourth proportional to 5,418.85, 7,470.60 and 3,428.41 is: 4,726.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.85 : 7,470.60 = 3,428.41 : x
  2. Step 2: Convert to fraction form
    5,418.85/7,470.60 = 3,428.41/x
  3. Step 3: Cross multiply
    5,418.85x = 7,470.60 × 3,428.41
  4. Step 4: Simplify right side
    5,418.85x = 25,612,279.75
  5. Step 5: Solve for x
    x = 25,612,279.75/5,418.85
  6. Step 6: Final answer
    x = 4,726.52

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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.