Home / 6,460.38-9,690.67-2,077.88

Finding the Fourth Proportional to 6,460.38, 9,690.67 and 2,077.88

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Solution

The fourth proportional to 6,460.38, 9,690.67 and 2,077.88 is: 3,116.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,460.38 : 9,690.67 = 2,077.88 : x
  2. Step 2: Convert to fraction form
    6,460.38/9,690.67 = 2,077.88/x
  3. Step 3: Cross multiply
    6,460.38x = 9,690.67 × 2,077.88
  4. Step 4: Simplify right side
    6,460.38x = 20,136,003.52
  5. Step 5: Solve for x
    x = 20,136,003.52/6,460.38
  6. Step 6: Final answer
    x = 3,116.85

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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.