Home / 10,648.56-15,972.48-2,857.32

Finding the Fourth Proportional to 10,648.56, 15,972.48 and 2,857.32

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Solution

The fourth proportional to 10,648.56, 15,972.48 and 2,857.32 is: 4,285.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,648.56 : 15,972.48 = 2,857.32 : x
  2. Step 2: Convert to fraction form
    10,648.56/15,972.48 = 2,857.32/x
  3. Step 3: Cross multiply
    10,648.56x = 15,972.48 × 2,857.32
  4. Step 4: Simplify right side
    10,648.56x = 45,638,486.55
  5. Step 5: Solve for x
    x = 45,638,486.55/10,648.56
  6. Step 6: Final answer
    x = 4,285.88

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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.