Home / 2,237.50-3,087.71-1,242.75

Finding the Fourth Proportional to 2,237.50, 3,087.71 and 1,242.75

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Solution

The fourth proportional to 2,237.50, 3,087.71 and 1,242.75 is: 1,714.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,237.50 : 3,087.71 = 1,242.75 : x
  2. Step 2: Convert to fraction form
    2,237.50/3,087.71 = 1,242.75/x
  3. Step 3: Cross multiply
    2,237.50x = 3,087.71 × 1,242.75
  4. Step 4: Simplify right side
    2,237.50x = 3,837,245.39
  5. Step 5: Solve for x
    x = 3,837,245.39/2,237.50
  6. Step 6: Final answer
    x = 1,714.97

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1.5x scale

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.