Home / 1,713.20-2,564.88-1,273.60

Finding the Fourth Proportional to 1,713.20, 2,564.88 and 1,273.60

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Solution

The fourth proportional to 1,713.20, 2,564.88 and 1,273.60 is: 1,906.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,713.20 : 2,564.88 = 1,273.60 : x
  2. Step 2: Convert to fraction form
    1,713.20/2,564.88 = 1,273.60/x
  3. Step 3: Cross multiply
    1,713.20x = 2,564.88 × 1,273.60
  4. Step 4: Simplify right side
    1,713.20x = 3,266,631.17
  5. Step 5: Solve for x
    x = 3,266,631.17/1,713.20
  6. Step 6: Final answer
    x = 1,906.74

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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.