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Finding the Fourth Proportional to 5,283.66, 7,926.09 and 1,388.14

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Solution

The fourth proportional to 5,283.66, 7,926.09 and 1,388.14 is: 2,082.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,283.66 : 7,926.09 = 1,388.14 : x
  2. Step 2: Convert to fraction form
    5,283.66/7,926.09 = 1,388.14/x
  3. Step 3: Cross multiply
    5,283.66x = 7,926.09 × 1,388.14
  4. Step 4: Simplify right side
    5,283.66x = 11,002,522.57
  5. Step 5: Solve for x
    x = 11,002,522.57/5,283.66
  6. Step 6: Final answer
    x = 2,082.37

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1.5x scale

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.