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Finding the Fourth Proportional to 3,069.52, 4,605 and 1,427.20

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Solution

The fourth proportional to 3,069.52, 4,605 and 1,427.20 is: 2,141.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,069.52 : 4,605 = 1,427.20 : x
  2. Step 2: Convert to fraction form
    3,069.52/4,605 = 1,427.20/x
  3. Step 3: Cross multiply
    3,069.52x = 4,605 × 1,427.20
  4. Step 4: Simplify right side
    3,069.52x = 6,572,256
  5. Step 5: Solve for x
    x = 6,572,256/3,069.52
  6. Step 6: Final answer
    x = 2,141.13

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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.