Home / 5,110.60-7,052.88-2,872.36

Finding the Fourth Proportional to 5,110.60, 7,052.88 and 2,872.36

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Solution

The fourth proportional to 5,110.60, 7,052.88 and 2,872.36 is: 3,964.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.60 : 7,052.88 = 2,872.36 : x
  2. Step 2: Convert to fraction form
    5,110.60/7,052.88 = 2,872.36/x
  3. Step 3: Cross multiply
    5,110.60x = 7,052.88 × 2,872.36
  4. Step 4: Simplify right side
    5,110.60x = 20,258,410.40
  5. Step 5: Solve for x
    x = 20,258,410.40/5,110.60
  6. Step 6: Final answer
    x = 3,964.00

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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.