Home / 5,387.29-7,436.81-3,148.31

Finding the Fourth Proportional to 5,387.29, 7,436.81 and 3,148.31

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Solution

The fourth proportional to 5,387.29, 7,436.81 and 3,148.31 is: 4,346.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.29 : 7,436.81 = 3,148.31 : x
  2. Step 2: Convert to fraction form
    5,387.29/7,436.81 = 3,148.31/x
  3. Step 3: Cross multiply
    5,387.29x = 7,436.81 × 3,148.31
  4. Step 4: Simplify right side
    5,387.29x = 23,413,383.29
  5. Step 5: Solve for x
    x = 23,413,383.29/5,387.29
  6. Step 6: Final answer
    x = 4,346.04

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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.