Home / 1,943.02-2,680.40-1,195.79

Finding the Fourth Proportional to 1,943.02, 2,680.40 and 1,195.79

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Solution

The fourth proportional to 1,943.02, 2,680.40 and 1,195.79 is: 1,649.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.02 : 2,680.40 = 1,195.79 : x
  2. Step 2: Convert to fraction form
    1,943.02/2,680.40 = 1,195.79/x
  3. Step 3: Cross multiply
    1,943.02x = 2,680.40 × 1,195.79
  4. Step 4: Simplify right side
    1,943.02x = 3,205,195.52
  5. Step 5: Solve for x
    x = 3,205,195.52/1,943.02
  6. Step 6: Final answer
    x = 1,649.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.