Home / 3,451.19-5,176.71-854.15

Finding the Fourth Proportional to 3,451.19, 5,176.71 and 854.15

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Solution

The fourth proportional to 3,451.19, 5,176.71 and 854.15 is: 1,281.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,451.19 : 5,176.71 = 854.15 : x
  2. Step 2: Convert to fraction form
    3,451.19/5,176.71 = 854.15/x
  3. Step 3: Cross multiply
    3,451.19x = 5,176.71 × 854.15
  4. Step 4: Simplify right side
    3,451.19x = 4,421,660.96
  5. Step 5: Solve for x
    x = 4,421,660.96/3,451.19
  6. Step 6: Final answer
    x = 1,281.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.