Home / 5,660.20-7,812.01-3,143.12

Finding the Fourth Proportional to 5,660.20, 7,812.01 and 3,143.12

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Solution

The fourth proportional to 5,660.20, 7,812.01 and 3,143.12 is: 4,338.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,660.20 : 7,812.01 = 3,143.12 : x
  2. Step 2: Convert to fraction form
    5,660.20/7,812.01 = 3,143.12/x
  3. Step 3: Cross multiply
    5,660.20x = 7,812.01 × 3,143.12
  4. Step 4: Simplify right side
    5,660.20x = 24,554,045.81
  5. Step 5: Solve for x
    x = 24,554,045.81/5,660.20
  6. Step 6: Final answer
    x = 4,338.02

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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.