Home / 1,147.44-1,719.36-1,104.72

Finding the Fourth Proportional to 1,147.44, 1,719.36 and 1,104.72

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Solution

The fourth proportional to 1,147.44, 1,719.36 and 1,104.72 is: 1,655.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147.44 : 1,719.36 = 1,104.72 : x
  2. Step 2: Convert to fraction form
    1,147.44/1,719.36 = 1,104.72/x
  3. Step 3: Cross multiply
    1,147.44x = 1,719.36 × 1,104.72
  4. Step 4: Simplify right side
    1,147.44x = 1,899,411.38
  5. Step 5: Solve for x
    x = 1,899,411.38/1,147.44
  6. Step 6: Final answer
    x = 1,655.35

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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.