Home / 3,640.31-5,024.23-2,855.72

Finding the Fourth Proportional to 3,640.31, 5,024.23 and 2,855.72

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Solution

The fourth proportional to 3,640.31, 5,024.23 and 2,855.72 is: 3,941.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640.31 : 5,024.23 = 2,855.72 : x
  2. Step 2: Convert to fraction form
    3,640.31/5,024.23 = 2,855.72/x
  3. Step 3: Cross multiply
    3,640.31x = 5,024.23 × 2,855.72
  4. Step 4: Simplify right side
    3,640.31x = 14,347,799.52
  5. Step 5: Solve for x
    x = 14,347,799.52/3,640.31
  6. Step 6: Final answer
    x = 3,941.37

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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.