Home / 7,157.30-10,724.10-2,772.36

Finding the Fourth Proportional to 7,157.30, 10,724.10 and 2,772.36

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Solution

The fourth proportional to 7,157.30, 10,724.10 and 2,772.36 is: 4,153.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,157.30 : 10,724.10 = 2,772.36 : x
  2. Step 2: Convert to fraction form
    7,157.30/10,724.10 = 2,772.36/x
  3. Step 3: Cross multiply
    7,157.30x = 10,724.10 × 2,772.36
  4. Step 4: Simplify right side
    7,157.30x = 29,731,055.48
  5. Step 5: Solve for x
    x = 29,731,055.48/7,157.30
  6. Step 6: Final answer
    x = 4,153.95

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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.