Home / 7,491.18-11,240.82-3,111.66

Finding the Fourth Proportional to 7,491.18, 11,240.82 and 3,111.66

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Solution

The fourth proportional to 7,491.18, 11,240.82 and 3,111.66 is: 4,669.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,491.18 : 11,240.82 = 3,111.66 : x
  2. Step 2: Convert to fraction form
    7,491.18/11,240.82 = 3,111.66/x
  3. Step 3: Cross multiply
    7,491.18x = 11,240.82 × 3,111.66
  4. Step 4: Simplify right side
    7,491.18x = 34,977,609.96
  5. Step 5: Solve for x
    x = 34,977,609.96/7,491.18
  6. Step 6: Final answer
    x = 4,669.17

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1.5x scale

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.