Home / 3,011.32-4,518.90-1,279.95

Finding the Fourth Proportional to 3,011.32, 4,518.90 and 1,279.95

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Solution

The fourth proportional to 3,011.32, 4,518.90 and 1,279.95 is: 1,920.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.32 : 4,518.90 = 1,279.95 : x
  2. Step 2: Convert to fraction form
    3,011.32/4,518.90 = 1,279.95/x
  3. Step 3: Cross multiply
    3,011.32x = 4,518.90 × 1,279.95
  4. Step 4: Simplify right side
    3,011.32x = 5,783,966.06
  5. Step 5: Solve for x
    x = 5,783,966.06/3,011.32
  6. Step 6: Final answer
    x = 1,920.74

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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.