Home / 7,340.48-10,129.82-3,983.32

Finding the Fourth Proportional to 7,340.48, 10,129.82 and 3,983.32

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Solution

The fourth proportional to 7,340.48, 10,129.82 and 3,983.32 is: 5,496.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,340.48 : 10,129.82 = 3,983.32 : x
  2. Step 2: Convert to fraction form
    7,340.48/10,129.82 = 3,983.32/x
  3. Step 3: Cross multiply
    7,340.48x = 10,129.82 × 3,983.32
  4. Step 4: Simplify right side
    7,340.48x = 40,350,314.60
  5. Step 5: Solve for x
    x = 40,350,314.60/7,340.48
  6. Step 6: Final answer
    x = 5,496.96

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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.