Home / 3,116.16-4,674.20-807.66

Finding the Fourth Proportional to 3,116.16, 4,674.20 and 807.66

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Solution

The fourth proportional to 3,116.16, 4,674.20 and 807.66 is: 1,211.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.16 : 4,674.20 = 807.66 : x
  2. Step 2: Convert to fraction form
    3,116.16/4,674.20 = 807.66/x
  3. Step 3: Cross multiply
    3,116.16x = 4,674.20 × 807.66
  4. Step 4: Simplify right side
    3,116.16x = 3,775,160.33
  5. Step 5: Solve for x
    x = 3,775,160.33/3,116.16
  6. Step 6: Final answer
    x = 1,211.48

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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.