Home / 2,938.85-4,054.50-1,876.65

Finding the Fourth Proportional to 2,938.85, 4,054.50 and 1,876.65

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Solution

The fourth proportional to 2,938.85, 4,054.50 and 1,876.65 is: 2,589.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.85 : 4,054.50 = 1,876.65 : x
  2. Step 2: Convert to fraction form
    2,938.85/4,054.50 = 1,876.65/x
  3. Step 3: Cross multiply
    2,938.85x = 4,054.50 × 1,876.65
  4. Step 4: Simplify right side
    2,938.85x = 7,608,877.43
  5. Step 5: Solve for x
    x = 7,608,877.43/2,938.85
  6. Step 6: Final answer
    x = 2,589.07

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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.