Home / 2,378.19-3,279.78-1,494.08

Finding the Fourth Proportional to 2,378.19, 3,279.78 and 1,494.08

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Solution

The fourth proportional to 2,378.19, 3,279.78 and 1,494.08 is: 2,060.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.19 : 3,279.78 = 1,494.08 : x
  2. Step 2: Convert to fraction form
    2,378.19/3,279.78 = 1,494.08/x
  3. Step 3: Cross multiply
    2,378.19x = 3,279.78 × 1,494.08
  4. Step 4: Simplify right side
    2,378.19x = 4,900,253.70
  5. Step 5: Solve for x
    x = 4,900,253.70/2,378.19
  6. Step 6: Final answer
    x = 2,060.50

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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.