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Finding the Fourth Proportional to 5,708.92, 8,562.18 and 1,812.40

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Solution

The fourth proportional to 5,708.92, 8,562.18 and 1,812.40 is: 2,718.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,708.92 : 8,562.18 = 1,812.40 : x
  2. Step 2: Convert to fraction form
    5,708.92/8,562.18 = 1,812.40/x
  3. Step 3: Cross multiply
    5,708.92x = 8,562.18 × 1,812.40
  4. Step 4: Simplify right side
    5,708.92x = 15,518,095.03
  5. Step 5: Solve for x
    x = 15,518,095.03/5,708.92
  6. Step 6: Final answer
    x = 2,718.22

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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.