Home / 2,820.29-3,893.33-1,877.65

Finding the Fourth Proportional to 2,820.29, 3,893.33 and 1,877.65

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Solution

The fourth proportional to 2,820.29, 3,893.33 and 1,877.65 is: 2,592.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.29 : 3,893.33 = 1,877.65 : x
  2. Step 2: Convert to fraction form
    2,820.29/3,893.33 = 1,877.65/x
  3. Step 3: Cross multiply
    2,820.29x = 3,893.33 × 1,877.65
  4. Step 4: Simplify right side
    2,820.29x = 7,310,306.04
  5. Step 5: Solve for x
    x = 7,310,306.04/2,820.29
  6. Step 6: Final answer
    x = 2,592.05

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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.