Home / 2,899.67-4,001.45-1,640.79

Finding the Fourth Proportional to 2,899.67, 4,001.45 and 1,640.79

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Solution

The fourth proportional to 2,899.67, 4,001.45 and 1,640.79 is: 2,264.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,899.67 : 4,001.45 = 1,640.79 : x
  2. Step 2: Convert to fraction form
    2,899.67/4,001.45 = 1,640.79/x
  3. Step 3: Cross multiply
    2,899.67x = 4,001.45 × 1,640.79
  4. Step 4: Simplify right side
    2,899.67x = 6,565,530.94
  5. Step 5: Solve for x
    x = 6,565,530.94/2,899.67
  6. Step 6: Final answer
    x = 2,264.24

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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.