Home / 3,891.06-5,340.51-3,461.76

Finding the Fourth Proportional to 3,891.06, 5,340.51 and 3,461.76

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Solution

The fourth proportional to 3,891.06, 5,340.51 and 3,461.76 is: 4,751.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.06 : 5,340.51 = 3,461.76 : x
  2. Step 2: Convert to fraction form
    3,891.06/5,340.51 = 3,461.76/x
  3. Step 3: Cross multiply
    3,891.06x = 5,340.51 × 3,461.76
  4. Step 4: Simplify right side
    3,891.06x = 18,487,563.90
  5. Step 5: Solve for x
    x = 18,487,563.90/3,891.06
  6. Step 6: Final answer
    x = 4,751.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.