Home / 2,287.95-3,157.37-1,240.02

Finding the Fourth Proportional to 2,287.95, 3,157.37 and 1,240.02

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Solution

The fourth proportional to 2,287.95, 3,157.37 and 1,240.02 is: 1,711.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,287.95 : 3,157.37 = 1,240.02 : x
  2. Step 2: Convert to fraction form
    2,287.95/3,157.37 = 1,240.02/x
  3. Step 3: Cross multiply
    2,287.95x = 3,157.37 × 1,240.02
  4. Step 4: Simplify right side
    2,287.95x = 3,915,189.40
  5. Step 5: Solve for x
    x = 3,915,189.40/2,287.95
  6. Step 6: Final answer
    x = 1,711.22

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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.