Home / 6,513.06-8,987.88-3,680.46

Finding the Fourth Proportional to 6,513.06, 8,987.88 and 3,680.46

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Solution

The fourth proportional to 6,513.06, 8,987.88 and 3,680.46 is: 5,078.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,513.06 : 8,987.88 = 3,680.46 : x
  2. Step 2: Convert to fraction form
    6,513.06/8,987.88 = 3,680.46/x
  3. Step 3: Cross multiply
    6,513.06x = 8,987.88 × 3,680.46
  4. Step 4: Simplify right side
    6,513.06x = 33,079,532.82
  5. Step 5: Solve for x
    x = 33,079,532.82/6,513.06
  6. Step 6: Final answer
    x = 5,078.95

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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.