Home / 5,065.11-6,989.67-3,177.71

Finding the Fourth Proportional to 5,065.11, 6,989.67 and 3,177.71

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Solution

The fourth proportional to 5,065.11, 6,989.67 and 3,177.71 is: 4,385.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,065.11 : 6,989.67 = 3,177.71 : x
  2. Step 2: Convert to fraction form
    5,065.11/6,989.67 = 3,177.71/x
  3. Step 3: Cross multiply
    5,065.11x = 6,989.67 × 3,177.71
  4. Step 4: Simplify right side
    5,065.11x = 22,211,109.31
  5. Step 5: Solve for x
    x = 22,211,109.31/5,065.11
  6. Step 6: Final answer
    x = 4,385.12

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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.