Home / 1,475.19-2,212.26-487.82

Finding the Fourth Proportional to 1,475.19, 2,212.26 and 487.82

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Solution

The fourth proportional to 1,475.19, 2,212.26 and 487.82 is: 731.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.19 : 2,212.26 = 487.82 : x
  2. Step 2: Convert to fraction form
    1,475.19/2,212.26 = 487.82/x
  3. Step 3: Cross multiply
    1,475.19x = 2,212.26 × 487.82
  4. Step 4: Simplify right side
    1,475.19x = 1,079,182.23
  5. Step 5: Solve for x
    x = 1,079,182.23/1,475.19
  6. Step 6: Final answer
    x = 731.56

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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.