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Finding the Fourth Proportional to 6,862.68, 10,292.40 and 2,970

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Solution

The fourth proportional to 6,862.68, 10,292.40 and 2,970 is: 4,454.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,862.68 : 10,292.40 = 2,970 : x
  2. Step 2: Convert to fraction form
    6,862.68/10,292.40 = 2,970/x
  3. Step 3: Cross multiply
    6,862.68x = 10,292.40 × 2,970
  4. Step 4: Simplify right side
    6,862.68x = 30,568,428
  5. Step 5: Solve for x
    x = 30,568,428/6,862.68
  6. Step 6: Final answer
    x = 4,454.30

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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.