Home / 2,877.08-4,307.22-2,139.96

Finding the Fourth Proportional to 2,877.08, 4,307.22 and 2,139.96

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Solution

The fourth proportional to 2,877.08, 4,307.22 and 2,139.96 is: 3,203.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877.08 : 4,307.22 = 2,139.96 : x
  2. Step 2: Convert to fraction form
    2,877.08/4,307.22 = 2,139.96/x
  3. Step 3: Cross multiply
    2,877.08x = 4,307.22 × 2,139.96
  4. Step 4: Simplify right side
    2,877.08x = 9,217,278.51
  5. Step 5: Solve for x
    x = 9,217,278.51/2,877.08
  6. Step 6: Final answer
    x = 3,203.69

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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.