Home / 2,851.24-4,277.91-1,290.76

Finding the Fourth Proportional to 2,851.24, 4,277.91 and 1,290.76

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Solution

The fourth proportional to 2,851.24, 4,277.91 and 1,290.76 is: 1,936.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.24 : 4,277.91 = 1,290.76 : x
  2. Step 2: Convert to fraction form
    2,851.24/4,277.91 = 1,290.76/x
  3. Step 3: Cross multiply
    2,851.24x = 4,277.91 × 1,290.76
  4. Step 4: Simplify right side
    2,851.24x = 5,521,755.11
  5. Step 5: Solve for x
    x = 5,521,755.11/2,851.24
  6. Step 6: Final answer
    x = 1,936.62

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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.