Home / 1,437.25-1,984.34-1,121.97

Finding the Fourth Proportional to 1,437.25, 1,984.34 and 1,121.97

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Solution

The fourth proportional to 1,437.25, 1,984.34 and 1,121.97 is: 1,549.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437.25 : 1,984.34 = 1,121.97 : x
  2. Step 2: Convert to fraction form
    1,437.25/1,984.34 = 1,121.97/x
  3. Step 3: Cross multiply
    1,437.25x = 1,984.34 × 1,121.97
  4. Step 4: Simplify right side
    1,437.25x = 2,226,369.95
  5. Step 5: Solve for x
    x = 2,226,369.95/1,437.25
  6. Step 6: Final answer
    x = 1,549.05

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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.