Home / 1,341.12-2,010.45-519.18

Finding the Fourth Proportional to 1,341.12, 2,010.45 and 519.18

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Solution

The fourth proportional to 1,341.12, 2,010.45 and 519.18 is: 778.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.12 : 2,010.45 = 519.18 : x
  2. Step 2: Convert to fraction form
    1,341.12/2,010.45 = 519.18/x
  3. Step 3: Cross multiply
    1,341.12x = 2,010.45 × 519.18
  4. Step 4: Simplify right side
    1,341.12x = 1,043,785.43
  5. Step 5: Solve for x
    x = 1,043,785.43/1,341.12
  6. Step 6: Final answer
    x = 778.29

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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.