Home / 2,639.18-3,640.48-1,694.66

Finding the Fourth Proportional to 2,639.18, 3,640.48 and 1,694.66

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Solution

The fourth proportional to 2,639.18, 3,640.48 and 1,694.66 is: 2,337.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.18 : 3,640.48 = 1,694.66 : x
  2. Step 2: Convert to fraction form
    2,639.18/3,640.48 = 1,694.66/x
  3. Step 3: Cross multiply
    2,639.18x = 3,640.48 × 1,694.66
  4. Step 4: Simplify right side
    2,639.18x = 6,169,353.40
  5. Step 5: Solve for x
    x = 6,169,353.40/2,639.18
  6. Step 6: Final answer
    x = 2,337.60

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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.