Home / 3,555.20-4,905.51-2,230.70

Finding the Fourth Proportional to 3,555.20, 4,905.51 and 2,230.70

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Solution

The fourth proportional to 3,555.20, 4,905.51 and 2,230.70 is: 3,077.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.20 : 4,905.51 = 2,230.70 : x
  2. Step 2: Convert to fraction form
    3,555.20/4,905.51 = 2,230.70/x
  3. Step 3: Cross multiply
    3,555.20x = 4,905.51 × 2,230.70
  4. Step 4: Simplify right side
    3,555.20x = 10,942,721.16
  5. Step 5: Solve for x
    x = 10,942,721.16/3,555.20
  6. Step 6: Final answer
    x = 3,077.95

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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.