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Finding the Fourth Proportional to 5,020, 7,530 and 1,372

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Solution

The fourth proportional to 5,020, 7,530 and 1,372 is: 2,058

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,020 : 7,530 = 1,372 : x
  2. Step 2: Convert to fraction form
    5,020/7,530 = 1,372/x
  3. Step 3: Cross multiply
    5,020x = 7,530 × 1,372
  4. Step 4: Simplify right side
    5,020x = 10,331,160
  5. Step 5: Solve for x
    x = 10,331,160/5,020
  6. Step 6: Final answer
    x = 2,058

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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.