Home / 2,141.27-2,955.35-1,245.13

Finding the Fourth Proportional to 2,141.27, 2,955.35 and 1,245.13

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Solution

The fourth proportional to 2,141.27, 2,955.35 and 1,245.13 is: 1,718.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,141.27 : 2,955.35 = 1,245.13 : x
  2. Step 2: Convert to fraction form
    2,141.27/2,955.35 = 1,245.13/x
  3. Step 3: Cross multiply
    2,141.27x = 2,955.35 × 1,245.13
  4. Step 4: Simplify right side
    2,141.27x = 3,679,794.95
  5. Step 5: Solve for x
    x = 3,679,794.95/2,141.27
  6. Step 6: Final answer
    x = 1,718.51

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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.