Home / 2,144.64-2,959.68-1,316.48

Finding the Fourth Proportional to 2,144.64, 2,959.68 and 1,316.48

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Solution

The fourth proportional to 2,144.64, 2,959.68 and 1,316.48 is: 1,816.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,144.64 : 2,959.68 = 1,316.48 : x
  2. Step 2: Convert to fraction form
    2,144.64/2,959.68 = 1,316.48/x
  3. Step 3: Cross multiply
    2,144.64x = 2,959.68 × 1,316.48
  4. Step 4: Simplify right side
    2,144.64x = 3,896,359.53
  5. Step 5: Solve for x
    x = 3,896,359.53/2,144.64
  6. Step 6: Final answer
    x = 1,816.79

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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.