Home / 5,253.90-7,876.98-2,655

Finding the Fourth Proportional to 5,253.90, 7,876.98 and 2,655

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Solution

The fourth proportional to 5,253.90, 7,876.98 and 2,655 is: 3,980.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,253.90 : 7,876.98 = 2,655 : x
  2. Step 2: Convert to fraction form
    5,253.90/7,876.98 = 2,655/x
  3. Step 3: Cross multiply
    5,253.90x = 7,876.98 × 2,655
  4. Step 4: Simplify right side
    5,253.90x = 20,913,381.90
  5. Step 5: Solve for x
    x = 20,913,381.90/5,253.90
  6. Step 6: Final answer
    x = 3,980.54

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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.