Home / 5,177.86-7,141.59-3,287.81

Finding the Fourth Proportional to 5,177.86, 7,141.59 and 3,287.81

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Solution

The fourth proportional to 5,177.86, 7,141.59 and 3,287.81 is: 4,534.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.86 : 7,141.59 = 3,287.81 : x
  2. Step 2: Convert to fraction form
    5,177.86/7,141.59 = 3,287.81/x
  3. Step 3: Cross multiply
    5,177.86x = 7,141.59 × 3,287.81
  4. Step 4: Simplify right side
    5,177.86x = 23,480,208.87
  5. Step 5: Solve for x
    x = 23,480,208.87/5,177.86
  6. Step 6: Final answer
    x = 4,534.73

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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.