Home / 6,521.66-8,999.84-3,689.59

Finding the Fourth Proportional to 6,521.66, 8,999.84 and 3,689.59

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Solution

The fourth proportional to 6,521.66, 8,999.84 and 3,689.59 is: 5,091.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,521.66 : 8,999.84 = 3,689.59 : x
  2. Step 2: Convert to fraction form
    6,521.66/8,999.84 = 3,689.59/x
  3. Step 3: Cross multiply
    6,521.66x = 8,999.84 × 3,689.59
  4. Step 4: Simplify right side
    6,521.66x = 33,205,656.22
  5. Step 5: Solve for x
    x = 33,205,656.22/6,521.66
  6. Step 6: Final answer
    x = 5,091.60

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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.