Home / 1,486.19-2,229.49-512.03

Finding the Fourth Proportional to 1,486.19, 2,229.49 and 512.03

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Solution

The fourth proportional to 1,486.19, 2,229.49 and 512.03 is: 768.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486.19 : 2,229.49 = 512.03 : x
  2. Step 2: Convert to fraction form
    1,486.19/2,229.49 = 512.03/x
  3. Step 3: Cross multiply
    1,486.19x = 2,229.49 × 512.03
  4. Step 4: Simplify right side
    1,486.19x = 1,141,565.76
  5. Step 5: Solve for x
    x = 1,141,565.76/1,486.19
  6. Step 6: Final answer
    x = 768.12

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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.