Home / 1,144.04-1,577.44-790.15

Finding the Fourth Proportional to 1,144.04, 1,577.44 and 790.15

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Solution

The fourth proportional to 1,144.04, 1,577.44 and 790.15 is: 1,089.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144.04 : 1,577.44 = 790.15 : x
  2. Step 2: Convert to fraction form
    1,144.04/1,577.44 = 790.15/x
  3. Step 3: Cross multiply
    1,144.04x = 1,577.44 × 790.15
  4. Step 4: Simplify right side
    1,144.04x = 1,246,414.22
  5. Step 5: Solve for x
    x = 1,246,414.22/1,144.04
  6. Step 6: Final answer
    x = 1,089.48

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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.