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Finding the Fourth Proportional to 5,248.33, 7,242.43 and 2,890.42

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Solution

The fourth proportional to 5,248.33, 7,242.43 and 2,890.42 is: 3,988.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,248.33 : 7,242.43 = 2,890.42 : x
  2. Step 2: Convert to fraction form
    5,248.33/7,242.43 = 2,890.42/x
  3. Step 3: Cross multiply
    5,248.33x = 7,242.43 × 2,890.42
  4. Step 4: Simplify right side
    5,248.33x = 20,933,664.52
  5. Step 5: Solve for x
    x = 20,933,664.52/5,248.33
  6. Step 6: Final answer
    x = 3,988.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.