Home / 2,565.18-3,848.49-1,640.70

Finding the Fourth Proportional to 2,565.18, 3,848.49 and 1,640.70

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Solution

The fourth proportional to 2,565.18, 3,848.49 and 1,640.70 is: 2,461.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,565.18 : 3,848.49 = 1,640.70 : x
  2. Step 2: Convert to fraction form
    2,565.18/3,848.49 = 1,640.70/x
  3. Step 3: Cross multiply
    2,565.18x = 3,848.49 × 1,640.70
  4. Step 4: Simplify right side
    2,565.18x = 6,314,217.54
  5. Step 5: Solve for x
    x = 6,314,217.54/2,565.18
  6. Step 6: Final answer
    x = 2,461.51

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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.