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Finding the Fourth Proportional to 1,627.73, 2,442.30 and 703.07

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Solution

The fourth proportional to 1,627.73, 2,442.30 and 703.07 is: 1,054.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,627.73 : 2,442.30 = 703.07 : x
  2. Step 2: Convert to fraction form
    1,627.73/2,442.30 = 703.07/x
  3. Step 3: Cross multiply
    1,627.73x = 2,442.30 × 703.07
  4. Step 4: Simplify right side
    1,627.73x = 1,717,095.65
  5. Step 5: Solve for x
    x = 1,717,095.65/1,627.73
  6. Step 6: Final answer
    x = 1,054.91

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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.