Home / 5,142.20-7,713.26-1,246.62

Finding the Fourth Proportional to 5,142.20, 7,713.26 and 1,246.62

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Solution

The fourth proportional to 5,142.20, 7,713.26 and 1,246.62 is: 1,869.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,142.20 : 7,713.26 = 1,246.62 : x
  2. Step 2: Convert to fraction form
    5,142.20/7,713.26 = 1,246.62/x
  3. Step 3: Cross multiply
    5,142.20x = 7,713.26 × 1,246.62
  4. Step 4: Simplify right side
    5,142.20x = 9,615,504.18
  5. Step 5: Solve for x
    x = 9,615,504.18/5,142.20
  6. Step 6: Final answer
    x = 1,869.92

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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.