Home / 2,876.98-3,970.49-1,618.33

Finding the Fourth Proportional to 2,876.98, 3,970.49 and 1,618.33

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Solution

The fourth proportional to 2,876.98, 3,970.49 and 1,618.33 is: 2,233.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,876.98 : 3,970.49 = 1,618.33 : x
  2. Step 2: Convert to fraction form
    2,876.98/3,970.49 = 1,618.33/x
  3. Step 3: Cross multiply
    2,876.98x = 3,970.49 × 1,618.33
  4. Step 4: Simplify right side
    2,876.98x = 6,425,563.08
  5. Step 5: Solve for x
    x = 6,425,563.08/2,876.98
  6. Step 6: Final answer
    x = 2,233.44

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1.5x scale

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.