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Finding the Fourth Proportional to 1,563.91, 2,345.29 and 467.90

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Solution

The fourth proportional to 1,563.91, 2,345.29 and 467.90 is: 701.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563.91 : 2,345.29 = 467.90 : x
  2. Step 2: Convert to fraction form
    1,563.91/2,345.29 = 467.90/x
  3. Step 3: Cross multiply
    1,563.91x = 2,345.29 × 467.90
  4. Step 4: Simplify right side
    1,563.91x = 1,097,358.85
  5. Step 5: Solve for x
    x = 1,097,358.85/1,563.91
  6. Step 6: Final answer
    x = 701.68

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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.