Home / 6,457.85-9,690.87-2,760.11

Finding the Fourth Proportional to 6,457.85, 9,690.87 and 2,760.11

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Solution

The fourth proportional to 6,457.85, 9,690.87 and 2,760.11 is: 4,141.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,457.85 : 9,690.87 = 2,760.11 : x
  2. Step 2: Convert to fraction form
    6,457.85/9,690.87 = 2,760.11/x
  3. Step 3: Cross multiply
    6,457.85x = 9,690.87 × 2,760.11
  4. Step 4: Simplify right side
    6,457.85x = 26,747,867.20
  5. Step 5: Solve for x
    x = 26,747,867.20/6,457.85
  6. Step 6: Final answer
    x = 4,141.92

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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.