Home / 5,389.92-7,434.40-3,799.92

Finding the Fourth Proportional to 5,389.92, 7,434.40 and 3,799.92

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Solution

The fourth proportional to 5,389.92, 7,434.40 and 3,799.92 is: 5,241.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.92 : 7,434.40 = 3,799.92 : x
  2. Step 2: Convert to fraction form
    5,389.92/7,434.40 = 3,799.92/x
  3. Step 3: Cross multiply
    5,389.92x = 7,434.40 × 3,799.92
  4. Step 4: Simplify right side
    5,389.92x = 28,250,125.25
  5. Step 5: Solve for x
    x = 28,250,125.25/5,389.92
  6. Step 6: Final answer
    x = 5,241.29

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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.