Home / 6,512.28-8,987.46-3,717.72

Finding the Fourth Proportional to 6,512.28, 8,987.46 and 3,717.72

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Solution

The fourth proportional to 6,512.28, 8,987.46 and 3,717.72 is: 5,130.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,512.28 : 8,987.46 = 3,717.72 : x
  2. Step 2: Convert to fraction form
    6,512.28/8,987.46 = 3,717.72/x
  3. Step 3: Cross multiply
    6,512.28x = 8,987.46 × 3,717.72
  4. Step 4: Simplify right side
    6,512.28x = 33,412,859.79
  5. Step 5: Solve for x
    x = 33,412,859.79/6,512.28
  6. Step 6: Final answer
    x = 5,130.75

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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.