Home / 2,850.24-4,275.92-1,206.78

Finding the Fourth Proportional to 2,850.24, 4,275.92 and 1,206.78

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Solution

The fourth proportional to 2,850.24, 4,275.92 and 1,206.78 is: 1,810.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,850.24 : 4,275.92 = 1,206.78 : x
  2. Step 2: Convert to fraction form
    2,850.24/4,275.92 = 1,206.78/x
  3. Step 3: Cross multiply
    2,850.24x = 4,275.92 × 1,206.78
  4. Step 4: Simplify right side
    2,850.24x = 5,160,094.74
  5. Step 5: Solve for x
    x = 5,160,094.74/2,850.24
  6. Step 6: Final answer
    x = 1,810.41

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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.