Home / 2,237.39-3,087.62-1,242.78

Finding the Fourth Proportional to 2,237.39, 3,087.62 and 1,242.78

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Solution

The fourth proportional to 2,237.39, 3,087.62 and 1,242.78 is: 1,715.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,237.39 : 3,087.62 = 1,242.78 : x
  2. Step 2: Convert to fraction form
    2,237.39/3,087.62 = 1,242.78/x
  3. Step 3: Cross multiply
    2,237.39x = 3,087.62 × 1,242.78
  4. Step 4: Simplify right side
    2,237.39x = 3,837,219.25
  5. Step 5: Solve for x
    x = 3,837,219.25/2,237.39
  6. Step 6: Final answer
    x = 1,715.04

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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.