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Finding the Fourth Proportional to 4,175, 6,265.68 and 1,545

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Solution

The fourth proportional to 4,175, 6,265.68 and 1,545 is: 2,318.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,175 : 6,265.68 = 1,545 : x
  2. Step 2: Convert to fraction form
    4,175/6,265.68 = 1,545/x
  3. Step 3: Cross multiply
    4,175x = 6,265.68 × 1,545
  4. Step 4: Simplify right side
    4,175x = 9,680,475.60
  5. Step 5: Solve for x
    x = 9,680,475.60/4,175
  6. Step 6: Final answer
    x = 2,318.68

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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.