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Finding the Fourth Proportional to 4,870, 7,306.08 and 1,792

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Solution

The fourth proportional to 4,870, 7,306.08 and 1,792 is: 2,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,870 : 7,306.08 = 1,792 : x
  2. Step 2: Convert to fraction form
    4,870/7,306.08 = 1,792/x
  3. Step 3: Cross multiply
    4,870x = 7,306.08 × 1,792
  4. Step 4: Simplify right side
    4,870x = 13,092,495.36
  5. Step 5: Solve for x
    x = 13,092,495.36/4,870
  6. Step 6: Final answer
    x = 2,688.40

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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.