Home / 2,007.23-3,010.70-1,275.20

Finding the Fourth Proportional to 2,007.23, 3,010.70 and 1,275.20

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Solution

The fourth proportional to 2,007.23, 3,010.70 and 1,275.20 is: 1,912.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,007.23 : 3,010.70 = 1,275.20 : x
  2. Step 2: Convert to fraction form
    2,007.23/3,010.70 = 1,275.20/x
  3. Step 3: Cross multiply
    2,007.23x = 3,010.70 × 1,275.20
  4. Step 4: Simplify right side
    2,007.23x = 3,839,223.21
  5. Step 5: Solve for x
    x = 3,839,223.21/2,007.23
  6. Step 6: Final answer
    x = 1,912.70

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1.5x scale

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.