Home / 2,315.17-3,194.14-1,319.73

Finding the Fourth Proportional to 2,315.17, 3,194.14 and 1,319.73

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Solution

The fourth proportional to 2,315.17, 3,194.14 and 1,319.73 is: 1,820.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,315.17 : 3,194.14 = 1,319.73 : x
  2. Step 2: Convert to fraction form
    2,315.17/3,194.14 = 1,319.73/x
  3. Step 3: Cross multiply
    2,315.17x = 3,194.14 × 1,319.73
  4. Step 4: Simplify right side
    2,315.17x = 4,215,402.38
  5. Step 5: Solve for x
    x = 4,215,402.38/2,315.17
  6. Step 6: Final answer
    x = 1,820.77

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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.