Home / 7,756.60-11,631.30-3,371.80

Finding the Fourth Proportional to 7,756.60, 11,631.30 and 3,371.80

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Solution

The fourth proportional to 7,756.60, 11,631.30 and 3,371.80 is: 5,056.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,756.60 : 11,631.30 = 3,371.80 : x
  2. Step 2: Convert to fraction form
    7,756.60/11,631.30 = 3,371.80/x
  3. Step 3: Cross multiply
    7,756.60x = 11,631.30 × 3,371.80
  4. Step 4: Simplify right side
    7,756.60x = 39,218,417.34
  5. Step 5: Solve for x
    x = 39,218,417.34/7,756.60
  6. Step 6: Final answer
    x = 5,056.14

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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.