Home / 2,275.70-3,143.49-2,210.90

Finding the Fourth Proportional to 2,275.70, 3,143.49 and 2,210.90

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Solution

The fourth proportional to 2,275.70, 3,143.49 and 2,210.90 is: 3,053.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.70 : 3,143.49 = 2,210.90 : x
  2. Step 2: Convert to fraction form
    2,275.70/3,143.49 = 2,210.90/x
  3. Step 3: Cross multiply
    2,275.70x = 3,143.49 × 2,210.90
  4. Step 4: Simplify right side
    2,275.70x = 6,949,942.04
  5. Step 5: Solve for x
    x = 6,949,942.04/2,275.70
  6. Step 6: Final answer
    x = 3,053.98

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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.