Home / 2,238.10-3,357.19-777.29

Finding the Fourth Proportional to 2,238.10, 3,357.19 and 777.29

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Solution

The fourth proportional to 2,238.10, 3,357.19 and 777.29 is: 1,165.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,238.10 : 3,357.19 = 777.29 : x
  2. Step 2: Convert to fraction form
    2,238.10/3,357.19 = 777.29/x
  3. Step 3: Cross multiply
    2,238.10x = 3,357.19 × 777.29
  4. Step 4: Simplify right side
    2,238.10x = 2,609,510.22
  5. Step 5: Solve for x
    x = 2,609,510.22/2,238.10
  6. Step 6: Final answer
    x = 1,165.95

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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.