Home / 2,490.43-3,435.37-1,545.79

Finding the Fourth Proportional to 2,490.43, 3,435.37 and 1,545.79

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Solution

The fourth proportional to 2,490.43, 3,435.37 and 1,545.79 is: 2,132.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.43 : 3,435.37 = 1,545.79 : x
  2. Step 2: Convert to fraction form
    2,490.43/3,435.37 = 1,545.79/x
  3. Step 3: Cross multiply
    2,490.43x = 3,435.37 × 1,545.79
  4. Step 4: Simplify right side
    2,490.43x = 5,310,352.86
  5. Step 5: Solve for x
    x = 5,310,352.86/2,490.43
  6. Step 6: Final answer
    x = 2,132.30

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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.