Home / 2,659.19-3,981.78-1,874.95

Finding the Fourth Proportional to 2,659.19, 3,981.78 and 1,874.95

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Solution

The fourth proportional to 2,659.19, 3,981.78 and 1,874.95 is: 2,807.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659.19 : 3,981.78 = 1,874.95 : x
  2. Step 2: Convert to fraction form
    2,659.19/3,981.78 = 1,874.95/x
  3. Step 3: Cross multiply
    2,659.19x = 3,981.78 × 1,874.95
  4. Step 4: Simplify right side
    2,659.19x = 7,465,628.46
  5. Step 5: Solve for x
    x = 7,465,628.46/2,659.19
  6. Step 6: Final answer
    x = 2,807.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.