Home / 1,135.24-1,567.02-872.92

Finding the Fourth Proportional to 1,135.24, 1,567.02 and 872.92

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Solution

The fourth proportional to 1,135.24, 1,567.02 and 872.92 is: 1,204.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,135.24 : 1,567.02 = 872.92 : x
  2. Step 2: Convert to fraction form
    1,135.24/1,567.02 = 872.92/x
  3. Step 3: Cross multiply
    1,135.24x = 1,567.02 × 872.92
  4. Step 4: Simplify right side
    1,135.24x = 1,367,883.10
  5. Step 5: Solve for x
    x = 1,367,883.10/1,135.24
  6. Step 6: Final answer
    x = 1,204.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.