Home / 2,629-3,943.08-874.78

Finding the Fourth Proportional to 2,629, 3,943.08 and 874.78

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Solution

The fourth proportional to 2,629, 3,943.08 and 874.78 is: 1,312.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629 : 3,943.08 = 874.78 : x
  2. Step 2: Convert to fraction form
    2,629/3,943.08 = 874.78/x
  3. Step 3: Cross multiply
    2,629x = 3,943.08 × 874.78
  4. Step 4: Simplify right side
    2,629x = 3,449,327.52
  5. Step 5: Solve for x
    x = 3,449,327.52/2,629
  6. Step 6: Final answer
    x = 1,312.03

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1.5x scale

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.