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Finding the Fourth Proportional to 1,654.65, 2,482.31 and 1,345.74

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Solution

The fourth proportional to 1,654.65, 2,482.31 and 1,345.74 is: 2,018.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,654.65 : 2,482.31 = 1,345.74 : x
  2. Step 2: Convert to fraction form
    1,654.65/2,482.31 = 1,345.74/x
  3. Step 3: Cross multiply
    1,654.65x = 2,482.31 × 1,345.74
  4. Step 4: Simplify right side
    1,654.65x = 3,340,543.86
  5. Step 5: Solve for x
    x = 3,340,543.86/1,654.65
  6. Step 6: Final answer
    x = 2,018.88

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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.