Home / 2,314.89-3,194.63-1,320.17

Finding the Fourth Proportional to 2,314.89, 3,194.63 and 1,320.17

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Solution

The fourth proportional to 2,314.89, 3,194.63 and 1,320.17 is: 1,821.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,314.89 : 3,194.63 = 1,320.17 : x
  2. Step 2: Convert to fraction form
    2,314.89/3,194.63 = 1,320.17/x
  3. Step 3: Cross multiply
    2,314.89x = 3,194.63 × 1,320.17
  4. Step 4: Simplify right side
    2,314.89x = 4,217,432.11
  5. Step 5: Solve for x
    x = 4,217,432.11/2,314.89
  6. Step 6: Final answer
    x = 1,821.87

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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.