Home / 2,314.19-3,192.79-1,318.76

Finding the Fourth Proportional to 2,314.19, 3,192.79 and 1,318.76

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Solution

The fourth proportional to 2,314.19, 3,192.79 and 1,318.76 is: 1,819.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,314.19 : 3,192.79 = 1,318.76 : x
  2. Step 2: Convert to fraction form
    2,314.19/3,192.79 = 1,318.76/x
  3. Step 3: Cross multiply
    2,314.19x = 3,192.79 × 1,318.76
  4. Step 4: Simplify right side
    2,314.19x = 4,210,523.74
  5. Step 5: Solve for x
    x = 4,210,523.74/2,314.19
  6. Step 6: Final answer
    x = 1,819.44

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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.