Home / 2,170.64-2,995.54-1,275.02

Finding the Fourth Proportional to 2,170.64, 2,995.54 and 1,275.02

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Solution

The fourth proportional to 2,170.64, 2,995.54 and 1,275.02 is: 1,759.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.64 : 2,995.54 = 1,275.02 : x
  2. Step 2: Convert to fraction form
    2,170.64/2,995.54 = 1,275.02/x
  3. Step 3: Cross multiply
    2,170.64x = 2,995.54 × 1,275.02
  4. Step 4: Simplify right side
    2,170.64x = 3,819,366.48
  5. Step 5: Solve for x
    x = 3,819,366.48/2,170.64
  6. Step 6: Final answer
    x = 1,759.56

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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.