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Finding the Fourth Proportional to 3,368.91, 4,649.13 and 1,876.91

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Solution

The fourth proportional to 3,368.91, 4,649.13 and 1,876.91 is: 2,590.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,368.91 : 4,649.13 = 1,876.91 : x
  2. Step 2: Convert to fraction form
    3,368.91/4,649.13 = 1,876.91/x
  3. Step 3: Cross multiply
    3,368.91x = 4,649.13 × 1,876.91
  4. Step 4: Simplify right side
    3,368.91x = 8,726,001.49
  5. Step 5: Solve for x
    x = 8,726,001.49/3,368.91
  6. Step 6: Final answer
    x = 2,590.16

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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.