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Finding the Fourth Proportional to 1,765.26, 2,647.53 and 887.52

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Solution

The fourth proportional to 1,765.26, 2,647.53 and 887.52 is: 1,331.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,765.26 : 2,647.53 = 887.52 : x
  2. Step 2: Convert to fraction form
    1,765.26/2,647.53 = 887.52/x
  3. Step 3: Cross multiply
    1,765.26x = 2,647.53 × 887.52
  4. Step 4: Simplify right side
    1,765.26x = 2,349,735.83
  5. Step 5: Solve for x
    x = 2,349,735.83/1,765.26
  6. Step 6: Final answer
    x = 1,331.10

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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.