Home / 6,512.40-8,987.22-3,859.92

Finding the Fourth Proportional to 6,512.40, 8,987.22 and 3,859.92

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Solution

The fourth proportional to 6,512.40, 8,987.22 and 3,859.92 is: 5,326.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,512.40 : 8,987.22 = 3,859.92 : x
  2. Step 2: Convert to fraction form
    6,512.40/8,987.22 = 3,859.92/x
  3. Step 3: Cross multiply
    6,512.40x = 8,987.22 × 3,859.92
  4. Step 4: Simplify right side
    6,512.40x = 34,689,950.22
  5. Step 5: Solve for x
    x = 34,689,950.22/6,512.40
  6. Step 6: Final answer
    x = 5,326.75

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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.