Home / 1,042.36-1,560.80-1,011.56

Finding the Fourth Proportional to 1,042.36, 1,560.80 and 1,011.56

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Solution

The fourth proportional to 1,042.36, 1,560.80 and 1,011.56 is: 1,514.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042.36 : 1,560.80 = 1,011.56 : x
  2. Step 2: Convert to fraction form
    1,042.36/1,560.80 = 1,011.56/x
  3. Step 3: Cross multiply
    1,042.36x = 1,560.80 × 1,011.56
  4. Step 4: Simplify right side
    1,042.36x = 1,578,842.85
  5. Step 5: Solve for x
    x = 1,578,842.85/1,042.36
  6. Step 6: Final answer
    x = 1,514.68

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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.