Home / 7,355.91-10,151.06-3,998.70

Finding the Fourth Proportional to 7,355.91, 10,151.06 and 3,998.70

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Solution

The fourth proportional to 7,355.91, 10,151.06 and 3,998.70 is: 5,518.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,355.91 : 10,151.06 = 3,998.70 : x
  2. Step 2: Convert to fraction form
    7,355.91/10,151.06 = 3,998.70/x
  3. Step 3: Cross multiply
    7,355.91x = 10,151.06 × 3,998.70
  4. Step 4: Simplify right side
    7,355.91x = 40,591,023.63
  5. Step 5: Solve for x
    x = 40,591,023.63/7,355.91
  6. Step 6: Final answer
    x = 5,518.15

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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.