Home / 3,862.45-5,328.38-2,268.57

Finding the Fourth Proportional to 3,862.45, 5,328.38 and 2,268.57

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Solution

The fourth proportional to 3,862.45, 5,328.38 and 2,268.57 is: 3,129.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,862.45 : 5,328.38 = 2,268.57 : x
  2. Step 2: Convert to fraction form
    3,862.45/5,328.38 = 2,268.57/x
  3. Step 3: Cross multiply
    3,862.45x = 5,328.38 × 2,268.57
  4. Step 4: Simplify right side
    3,862.45x = 12,087,828.67
  5. Step 5: Solve for x
    x = 12,087,828.67/3,862.45
  6. Step 6: Final answer
    x = 3,129.57

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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.