Home / 5,360.39-7,401.26-3,871.61

Finding the Fourth Proportional to 5,360.39, 7,401.26 and 3,871.61

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Solution

The fourth proportional to 5,360.39, 7,401.26 and 3,871.61 is: 5,345.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,360.39 : 7,401.26 = 3,871.61 : x
  2. Step 2: Convert to fraction form
    5,360.39/7,401.26 = 3,871.61/x
  3. Step 3: Cross multiply
    5,360.39x = 7,401.26 × 3,871.61
  4. Step 4: Simplify right side
    5,360.39x = 28,654,792.23
  5. Step 5: Solve for x
    x = 28,654,792.23/5,360.39
  6. Step 6: Final answer
    x = 5,345.65

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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.