Home / 5,182.18-7,776.47-4,121.71

Finding the Fourth Proportional to 5,182.18, 7,776.47 and 4,121.71

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Solution

The fourth proportional to 5,182.18, 7,776.47 and 4,121.71 is: 6,185.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,182.18 : 7,776.47 = 4,121.71 : x
  2. Step 2: Convert to fraction form
    5,182.18/7,776.47 = 4,121.71/x
  3. Step 3: Cross multiply
    5,182.18x = 7,776.47 × 4,121.71
  4. Step 4: Simplify right side
    5,182.18x = 32,052,345.03
  5. Step 5: Solve for x
    x = 32,052,345.03/5,182.18
  6. Step 6: Final answer
    x = 6,185.11

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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.