Home / 1,427.28-1,968.44-1,132.04

Finding the Fourth Proportional to 1,427.28, 1,968.44 and 1,132.04

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Solution

The fourth proportional to 1,427.28, 1,968.44 and 1,132.04 is: 1,561.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427.28 : 1,968.44 = 1,132.04 : x
  2. Step 2: Convert to fraction form
    1,427.28/1,968.44 = 1,132.04/x
  3. Step 3: Cross multiply
    1,427.28x = 1,968.44 × 1,132.04
  4. Step 4: Simplify right side
    1,427.28x = 2,228,337.32
  5. Step 5: Solve for x
    x = 2,228,337.32/1,427.28
  6. Step 6: Final answer
    x = 1,561.25

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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.