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Finding the Fourth Proportional to 1,751.39, 2,416.87 and 1,005.62

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Solution

The fourth proportional to 1,751.39, 2,416.87 and 1,005.62 is: 1,387.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,751.39 : 2,416.87 = 1,005.62 : x
  2. Step 2: Convert to fraction form
    1,751.39/2,416.87 = 1,005.62/x
  3. Step 3: Cross multiply
    1,751.39x = 2,416.87 × 1,005.62
  4. Step 4: Simplify right side
    1,751.39x = 2,430,441.98
  5. Step 5: Solve for x
    x = 2,430,441.98/1,751.39
  6. Step 6: Final answer
    x = 1,387.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.