Home / 2,626.30-3,939.65-777.37

Finding the Fourth Proportional to 2,626.30, 3,939.65 and 777.37

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Solution

The fourth proportional to 2,626.30, 3,939.65 and 777.37 is: 1,166.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,626.30 : 3,939.65 = 777.37 : x
  2. Step 2: Convert to fraction form
    2,626.30/3,939.65 = 777.37/x
  3. Step 3: Cross multiply
    2,626.30x = 3,939.65 × 777.37
  4. Step 4: Simplify right side
    2,626.30x = 3,062,565.72
  5. Step 5: Solve for x
    x = 3,062,565.72/2,626.30
  6. Step 6: Final answer
    x = 1,166.11

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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.