Home / 2,456.93-3,689.60-1,640.45

Finding the Fourth Proportional to 2,456.93, 3,689.60 and 1,640.45

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Solution

The fourth proportional to 2,456.93, 3,689.60 and 1,640.45 is: 2,463.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,456.93 : 3,689.60 = 1,640.45 : x
  2. Step 2: Convert to fraction form
    2,456.93/3,689.60 = 1,640.45/x
  3. Step 3: Cross multiply
    2,456.93x = 3,689.60 × 1,640.45
  4. Step 4: Simplify right side
    2,456.93x = 6,052,577.67
  5. Step 5: Solve for x
    x = 6,052,577.67/2,456.93
  6. Step 6: Final answer
    x = 2,463.48

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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.