Home / 7,331.40-10,117.20-4,187.52

Finding the Fourth Proportional to 7,331.40, 10,117.20 and 4,187.52

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Solution

The fourth proportional to 7,331.40, 10,117.20 and 4,187.52 is: 5,778.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,331.40 : 10,117.20 = 4,187.52 : x
  2. Step 2: Convert to fraction form
    7,331.40/10,117.20 = 4,187.52/x
  3. Step 3: Cross multiply
    7,331.40x = 10,117.20 × 4,187.52
  4. Step 4: Simplify right side
    7,331.40x = 42,365,977.34
  5. Step 5: Solve for x
    x = 42,365,977.34/7,331.40
  6. Step 6: Final answer
    x = 5,778.70

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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.