Home / 4,971.60-7,456.80-2,892.78

Finding the Fourth Proportional to 4,971.60, 7,456.80 and 2,892.78

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Solution

The fourth proportional to 4,971.60, 7,456.80 and 2,892.78 is: 4,338.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,971.60 : 7,456.80 = 2,892.78 : x
  2. Step 2: Convert to fraction form
    4,971.60/7,456.80 = 2,892.78/x
  3. Step 3: Cross multiply
    4,971.60x = 7,456.80 × 2,892.78
  4. Step 4: Simplify right side
    4,971.60x = 21,570,881.90
  5. Step 5: Solve for x
    x = 21,570,881.90/4,971.60
  6. Step 6: Final answer
    x = 4,338.82

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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.