Home / 1,319.10-1,976.49-1,029.66

Finding the Fourth Proportional to 1,319.10, 1,976.49 and 1,029.66

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Solution

The fourth proportional to 1,319.10, 1,976.49 and 1,029.66 is: 1,542.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319.10 : 1,976.49 = 1,029.66 : x
  2. Step 2: Convert to fraction form
    1,319.10/1,976.49 = 1,029.66/x
  3. Step 3: Cross multiply
    1,319.10x = 1,976.49 × 1,029.66
  4. Step 4: Simplify right side
    1,319.10x = 2,035,112.69
  5. Step 5: Solve for x
    x = 2,035,112.69/1,319.10
  6. Step 6: Final answer
    x = 1,542.80

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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.