Home / 2,144.32-2,959.66-1,260.40

Finding the Fourth Proportional to 2,144.32, 2,959.66 and 1,260.40

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Solution

The fourth proportional to 2,144.32, 2,959.66 and 1,260.40 is: 1,739.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,144.32 : 2,959.66 = 1,260.40 : x
  2. Step 2: Convert to fraction form
    2,144.32/2,959.66 = 1,260.40/x
  3. Step 3: Cross multiply
    2,144.32x = 2,959.66 × 1,260.40
  4. Step 4: Simplify right side
    2,144.32x = 3,730,355.46
  5. Step 5: Solve for x
    x = 3,730,355.46/2,144.32
  6. Step 6: Final answer
    x = 1,739.64

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1.5x scale

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.