Home / 5,236.16-7,851.36-1,948.64

Finding the Fourth Proportional to 5,236.16, 7,851.36 and 1,948.64

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Solution

The fourth proportional to 5,236.16, 7,851.36 and 1,948.64 is: 2,921.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,236.16 : 7,851.36 = 1,948.64 : x
  2. Step 2: Convert to fraction form
    5,236.16/7,851.36 = 1,948.64/x
  3. Step 3: Cross multiply
    5,236.16x = 7,851.36 × 1,948.64
  4. Step 4: Simplify right side
    5,236.16x = 15,299,474.15
  5. Step 5: Solve for x
    x = 15,299,474.15/5,236.16
  6. Step 6: Final answer
    x = 2,921.89

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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.