Home / 5,116.49-7,665.60-2,775.00

Finding the Fourth Proportional to 5,116.49, 7,665.60 and 2,775.00

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Solution

The fourth proportional to 5,116.49, 7,665.60 and 2,775.00 is: 4,157.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.49 : 7,665.60 = 2,775.00 : x
  2. Step 2: Convert to fraction form
    5,116.49/7,665.60 = 2,775.00/x
  3. Step 3: Cross multiply
    5,116.49x = 7,665.60 × 2,775.00
  4. Step 4: Simplify right side
    5,116.49x = 21,272,063.10
  5. Step 5: Solve for x
    x = 21,272,063.10/5,116.49
  6. Step 6: Final answer
    x = 4,157.55

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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.