Home / 5,111.44-7,666.29-1,648.69

Finding the Fourth Proportional to 5,111.44, 7,666.29 and 1,648.69

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Solution

The fourth proportional to 5,111.44, 7,666.29 and 1,648.69 is: 2,472.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.44 : 7,666.29 = 1,648.69 : x
  2. Step 2: Convert to fraction form
    5,111.44/7,666.29 = 1,648.69/x
  3. Step 3: Cross multiply
    5,111.44x = 7,666.29 × 1,648.69
  4. Step 4: Simplify right side
    5,111.44x = 12,639,335.66
  5. Step 5: Solve for x
    x = 12,639,335.66/5,111.44
  6. Step 6: Final answer
    x = 2,472.75

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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.