Home / 3,490.86-5,236.62-1,025.70

Finding the Fourth Proportional to 3,490.86, 5,236.62 and 1,025.70

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Solution

The fourth proportional to 3,490.86, 5,236.62 and 1,025.70 is: 1,538.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490.86 : 5,236.62 = 1,025.70 : x
  2. Step 2: Convert to fraction form
    3,490.86/5,236.62 = 1,025.70/x
  3. Step 3: Cross multiply
    3,490.86x = 5,236.62 × 1,025.70
  4. Step 4: Simplify right side
    3,490.86x = 5,371,201.13
  5. Step 5: Solve for x
    x = 5,371,201.13/3,490.86
  6. Step 6: Final answer
    x = 1,538.65

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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.