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Finding the Fourth Proportional to 2,862.65, 4,294.65 and 888.18

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Solution

The fourth proportional to 2,862.65, 4,294.65 and 888.18 is: 1,332.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.65 : 4,294.65 = 888.18 : x
  2. Step 2: Convert to fraction form
    2,862.65/4,294.65 = 888.18/x
  3. Step 3: Cross multiply
    2,862.65x = 4,294.65 × 888.18
  4. Step 4: Simplify right side
    2,862.65x = 3,814,408.01
  5. Step 5: Solve for x
    x = 3,814,408.01/2,862.65
  6. Step 6: Final answer
    x = 1,332.47

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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.