Home / 7,778.10-11,663.72-2,230.18

Finding the Fourth Proportional to 7,778.10, 11,663.72 and 2,230.18

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Solution

The fourth proportional to 7,778.10, 11,663.72 and 2,230.18 is: 3,344.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,778.10 : 11,663.72 = 2,230.18 : x
  2. Step 2: Convert to fraction form
    7,778.10/11,663.72 = 2,230.18/x
  3. Step 3: Cross multiply
    7,778.10x = 11,663.72 × 2,230.18
  4. Step 4: Simplify right side
    7,778.10x = 26,012,195.07
  5. Step 5: Solve for x
    x = 26,012,195.07/7,778.10
  6. Step 6: Final answer
    x = 3,344.29

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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.