Home / 7,321.60-10,983.12-2,127.52

Finding the Fourth Proportional to 7,321.60, 10,983.12 and 2,127.52

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Solution

The fourth proportional to 7,321.60, 10,983.12 and 2,127.52 is: 3,191.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.60 : 10,983.12 = 2,127.52 : x
  2. Step 2: Convert to fraction form
    7,321.60/10,983.12 = 2,127.52/x
  3. Step 3: Cross multiply
    7,321.60x = 10,983.12 × 2,127.52
  4. Step 4: Simplify right side
    7,321.60x = 23,366,807.46
  5. Step 5: Solve for x
    x = 23,366,807.46/7,321.60
  6. Step 6: Final answer
    x = 3,191.49

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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.