Home / 2,891.10-4,334.10-1,041.78

Finding the Fourth Proportional to 2,891.10, 4,334.10 and 1,041.78

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Solution

The fourth proportional to 2,891.10, 4,334.10 and 1,041.78 is: 1,561.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891.10 : 4,334.10 = 1,041.78 : x
  2. Step 2: Convert to fraction form
    2,891.10/4,334.10 = 1,041.78/x
  3. Step 3: Cross multiply
    2,891.10x = 4,334.10 × 1,041.78
  4. Step 4: Simplify right side
    2,891.10x = 4,515,178.70
  5. Step 5: Solve for x
    x = 4,515,178.70/2,891.10
  6. Step 6: Final answer
    x = 1,561.75

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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.