Home / 2,876.86-3,970.05-1,617.94

Finding the Fourth Proportional to 2,876.86, 3,970.05 and 1,617.94

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Solution

The fourth proportional to 2,876.86, 3,970.05 and 1,617.94 is: 2,232.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,876.86 : 3,970.05 = 1,617.94 : x
  2. Step 2: Convert to fraction form
    2,876.86/3,970.05 = 1,617.94/x
  3. Step 3: Cross multiply
    2,876.86x = 3,970.05 × 1,617.94
  4. Step 4: Simplify right side
    2,876.86x = 6,423,302.70
  5. Step 5: Solve for x
    x = 6,423,302.70/2,876.86
  6. Step 6: Final answer
    x = 2,232.75

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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.