Home / 2,895.13-3,989.92-2,055.87

Finding the Fourth Proportional to 2,895.13, 3,989.92 and 2,055.87

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Solution

The fourth proportional to 2,895.13, 3,989.92 and 2,055.87 is: 2,833.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,895.13 : 3,989.92 = 2,055.87 : x
  2. Step 2: Convert to fraction form
    2,895.13/3,989.92 = 2,055.87/x
  3. Step 3: Cross multiply
    2,895.13x = 3,989.92 × 2,055.87
  4. Step 4: Simplify right side
    2,895.13x = 8,202,756.83
  5. Step 5: Solve for x
    x = 8,202,756.83/2,895.13
  6. Step 6: Final answer
    x = 2,833.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.