Home / 1,144.06-1,582.13-1,123.29

Finding the Fourth Proportional to 1,144.06, 1,582.13 and 1,123.29

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Solution

The fourth proportional to 1,144.06, 1,582.13 and 1,123.29 is: 1,553.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144.06 : 1,582.13 = 1,123.29 : x
  2. Step 2: Convert to fraction form
    1,144.06/1,582.13 = 1,123.29/x
  3. Step 3: Cross multiply
    1,144.06x = 1,582.13 × 1,123.29
  4. Step 4: Simplify right side
    1,144.06x = 1,777,185.19
  5. Step 5: Solve for x
    x = 1,777,185.19/1,144.06
  6. Step 6: Final answer
    x = 1,553.41

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1.5x scale

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.