Home / 4,192.31-5,785.39-2,620.39

Finding the Fourth Proportional to 4,192.31, 5,785.39 and 2,620.39

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Solution

The fourth proportional to 4,192.31, 5,785.39 and 2,620.39 is: 3,616.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,192.31 : 5,785.39 = 2,620.39 : x
  2. Step 2: Convert to fraction form
    4,192.31/5,785.39 = 2,620.39/x
  3. Step 3: Cross multiply
    4,192.31x = 5,785.39 × 2,620.39
  4. Step 4: Simplify right side
    4,192.31x = 15,159,978.10
  5. Step 5: Solve for x
    x = 15,159,978.10/4,192.31
  6. Step 6: Final answer
    x = 3,616.14

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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.