Home / 1,341.18-2,011.86-519.46

Finding the Fourth Proportional to 1,341.18, 2,011.86 and 519.46

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Solution

The fourth proportional to 1,341.18, 2,011.86 and 519.46 is: 779.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.18 : 2,011.86 = 519.46 : x
  2. Step 2: Convert to fraction form
    1,341.18/2,011.86 = 519.46/x
  3. Step 3: Cross multiply
    1,341.18x = 2,011.86 × 519.46
  4. Step 4: Simplify right side
    1,341.18x = 1,045,080.80
  5. Step 5: Solve for x
    x = 1,045,080.80/1,341.18
  6. Step 6: Final answer
    x = 779.22

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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.