Home / 2,217.77-3,060.96-1,274.20

Finding the Fourth Proportional to 2,217.77, 3,060.96 and 1,274.20

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Solution

The fourth proportional to 2,217.77, 3,060.96 and 1,274.20 is: 1,758.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.77 : 3,060.96 = 1,274.20 : x
  2. Step 2: Convert to fraction form
    2,217.77/3,060.96 = 1,274.20/x
  3. Step 3: Cross multiply
    2,217.77x = 3,060.96 × 1,274.20
  4. Step 4: Simplify right side
    2,217.77x = 3,900,275.23
  5. Step 5: Solve for x
    x = 3,900,275.23/2,217.77
  6. Step 6: Final answer
    x = 1,758.65

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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.