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Finding the Fourth Proportional to 1,433.92, 2,151.12 and 568.84

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Solution

The fourth proportional to 1,433.92, 2,151.12 and 568.84 is: 853.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433.92 : 2,151.12 = 568.84 : x
  2. Step 2: Convert to fraction form
    1,433.92/2,151.12 = 568.84/x
  3. Step 3: Cross multiply
    1,433.92x = 2,151.12 × 568.84
  4. Step 4: Simplify right side
    1,433.92x = 1,223,643.10
  5. Step 5: Solve for x
    x = 1,223,643.10/1,433.92
  6. Step 6: Final answer
    x = 853.36

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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.