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Finding the Fourth Proportional to 1,197, 1,652.40 and 887.04

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Solution

The fourth proportional to 1,197, 1,652.40 and 887.04 is: 1,224.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197 : 1,652.40 = 887.04 : x
  2. Step 2: Convert to fraction form
    1,197/1,652.40 = 887.04/x
  3. Step 3: Cross multiply
    1,197x = 1,652.40 × 887.04
  4. Step 4: Simplify right side
    1,197x = 1,465,744.90
  5. Step 5: Solve for x
    x = 1,465,744.90/1,197
  6. Step 6: Final answer
    x = 1,224.52

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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.