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Finding the Fourth Proportional to 7,147.02, 10,719.93 and 1,952.90

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Solution

The fourth proportional to 7,147.02, 10,719.93 and 1,952.90 is: 2,929.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,147.02 : 10,719.93 = 1,952.90 : x
  2. Step 2: Convert to fraction form
    7,147.02/10,719.93 = 1,952.90/x
  3. Step 3: Cross multiply
    7,147.02x = 10,719.93 × 1,952.90
  4. Step 4: Simplify right side
    7,147.02x = 20,934,951.30
  5. Step 5: Solve for x
    x = 20,934,951.30/7,147.02
  6. Step 6: Final answer
    x = 2,929.19

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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.