Home / 7,002.20-10,503.30-3,721.70

Finding the Fourth Proportional to 7,002.20, 10,503.30 and 3,721.70

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Solution

The fourth proportional to 7,002.20, 10,503.30 and 3,721.70 is: 5,582.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,002.20 : 10,503.30 = 3,721.70 : x
  2. Step 2: Convert to fraction form
    7,002.20/10,503.30 = 3,721.70/x
  3. Step 3: Cross multiply
    7,002.20x = 10,503.30 × 3,721.70
  4. Step 4: Simplify right side
    7,002.20x = 39,090,131.61
  5. Step 5: Solve for x
    x = 39,090,131.61/7,002.20
  6. Step 6: Final answer
    x = 5,582.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.