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Finding the Fourth Proportional to 1,642.03, 2,266.01 and 1,052.57

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Solution

The fourth proportional to 1,642.03, 2,266.01 and 1,052.57 is: 1,452.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642.03 : 2,266.01 = 1,052.57 : x
  2. Step 2: Convert to fraction form
    1,642.03/2,266.01 = 1,052.57/x
  3. Step 3: Cross multiply
    1,642.03x = 2,266.01 × 1,052.57
  4. Step 4: Simplify right side
    1,642.03x = 2,385,132.12
  5. Step 5: Solve for x
    x = 2,385,132.12/1,642.03
  6. Step 6: Final answer
    x = 1,452.55

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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.