Home / 5,235.78-7,225.38-2,877.96

Finding the Fourth Proportional to 5,235.78, 7,225.38 and 2,877.96

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Solution

The fourth proportional to 5,235.78, 7,225.38 and 2,877.96 is: 3,971.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,235.78 : 7,225.38 = 2,877.96 : x
  2. Step 2: Convert to fraction form
    5,235.78/7,225.38 = 2,877.96/x
  3. Step 3: Cross multiply
    5,235.78x = 7,225.38 × 2,877.96
  4. Step 4: Simplify right side
    5,235.78x = 20,794,354.62
  5. Step 5: Solve for x
    x = 20,794,354.62/5,235.78
  6. Step 6: Final answer
    x = 3,971.59

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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.