Home / 6,278.90-9,415.10-2,580.44

Finding the Fourth Proportional to 6,278.90, 9,415.10 and 2,580.44

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Solution

The fourth proportional to 6,278.90, 9,415.10 and 2,580.44 is: 3,869.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.90 : 9,415.10 = 2,580.44 : x
  2. Step 2: Convert to fraction form
    6,278.90/9,415.10 = 2,580.44/x
  3. Step 3: Cross multiply
    6,278.90x = 9,415.10 × 2,580.44
  4. Step 4: Simplify right side
    6,278.90x = 24,295,060.02
  5. Step 5: Solve for x
    x = 24,295,060.02/6,278.90
  6. Step 6: Final answer
    x = 3,869.32

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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.