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Finding the Fourth Proportional to 5,714.12, 8,569.74 and 1,818.92

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Solution

The fourth proportional to 5,714.12, 8,569.74 and 1,818.92 is: 2,727.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,714.12 : 8,569.74 = 1,818.92 : x
  2. Step 2: Convert to fraction form
    5,714.12/8,569.74 = 1,818.92/x
  3. Step 3: Cross multiply
    5,714.12x = 8,569.74 × 1,818.92
  4. Step 4: Simplify right side
    5,714.12x = 15,587,671.48
  5. Step 5: Solve for x
    x = 15,587,671.48/5,714.12
  6. Step 6: Final answer
    x = 2,727.92

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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.