Home / 2,025.13-3,036.61-638.10

Finding the Fourth Proportional to 2,025.13, 3,036.61 and 638.10

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Solution

The fourth proportional to 2,025.13, 3,036.61 and 638.10 is: 956.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,025.13 : 3,036.61 = 638.10 : x
  2. Step 2: Convert to fraction form
    2,025.13/3,036.61 = 638.10/x
  3. Step 3: Cross multiply
    2,025.13x = 3,036.61 × 638.10
  4. Step 4: Simplify right side
    2,025.13x = 1,937,671.97
  5. Step 5: Solve for x
    x = 1,937,671.97/2,025.13
  6. Step 6: Final answer
    x = 956.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.