Home / 5,391.34-7,436.90-3,401.18

Finding the Fourth Proportional to 5,391.34, 7,436.90 and 3,401.18

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Solution

The fourth proportional to 5,391.34, 7,436.90 and 3,401.18 is: 4,691.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.34 : 7,436.90 = 3,401.18 : x
  2. Step 2: Convert to fraction form
    5,391.34/7,436.90 = 3,401.18/x
  3. Step 3: Cross multiply
    5,391.34x = 7,436.90 × 3,401.18
  4. Step 4: Simplify right side
    5,391.34x = 25,294,235.54
  5. Step 5: Solve for x
    x = 25,294,235.54/5,391.34
  6. Step 6: Final answer
    x = 4,691.64

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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.