Home / 6,511.15-9,766.66-1,580.79

Finding the Fourth Proportional to 6,511.15, 9,766.66 and 1,580.79

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Solution

The fourth proportional to 6,511.15, 9,766.66 and 1,580.79 is: 2,371.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,511.15 : 9,766.66 = 1,580.79 : x
  2. Step 2: Convert to fraction form
    6,511.15/9,766.66 = 1,580.79/x
  3. Step 3: Cross multiply
    6,511.15x = 9,766.66 × 1,580.79
  4. Step 4: Simplify right side
    6,511.15x = 15,439,046.63
  5. Step 5: Solve for x
    x = 15,439,046.63/6,511.15
  6. Step 6: Final answer
    x = 2,371.17

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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.