Home / 6,589.40-9,878.36-2,691.32

Finding the Fourth Proportional to 6,589.40, 9,878.36 and 2,691.32

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Solution

The fourth proportional to 6,589.40, 9,878.36 and 2,691.32 is: 4,034.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,589.40 : 9,878.36 = 2,691.32 : x
  2. Step 2: Convert to fraction form
    6,589.40/9,878.36 = 2,691.32/x
  3. Step 3: Cross multiply
    6,589.40x = 9,878.36 × 2,691.32
  4. Step 4: Simplify right side
    6,589.40x = 26,585,827.84
  5. Step 5: Solve for x
    x = 26,585,827.84/6,589.40
  6. Step 6: Final answer
    x = 4,034.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.