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Finding the Fourth Proportional to 3,048.52, 4,207.02 and 1,868.90

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Solution

The fourth proportional to 3,048.52, 4,207.02 and 1,868.90 is: 2,579.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,048.52 : 4,207.02 = 1,868.90 : x
  2. Step 2: Convert to fraction form
    3,048.52/4,207.02 = 1,868.90/x
  3. Step 3: Cross multiply
    3,048.52x = 4,207.02 × 1,868.90
  4. Step 4: Simplify right side
    3,048.52x = 7,862,499.68
  5. Step 5: Solve for x
    x = 7,862,499.68/3,048.52
  6. Step 6: Final answer
    x = 2,579.12

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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.