Home / 7,331.92-10,117.92-4,187.68

Finding the Fourth Proportional to 7,331.92, 10,117.92 and 4,187.68

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Solution

The fourth proportional to 7,331.92, 10,117.92 and 4,187.68 is: 5,778.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,331.92 : 10,117.92 = 4,187.68 : x
  2. Step 2: Convert to fraction form
    7,331.92/10,117.92 = 4,187.68/x
  3. Step 3: Cross multiply
    7,331.92x = 10,117.92 × 4,187.68
  4. Step 4: Simplify right side
    7,331.92x = 42,370,611.23
  5. Step 5: Solve for x
    x = 42,370,611.23/7,331.92
  6. Step 6: Final answer
    x = 5,778.92

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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.