Home / 2,237.66-3,087.92-1,242.88

Finding the Fourth Proportional to 2,237.66, 3,087.92 and 1,242.88

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Solution

The fourth proportional to 2,237.66, 3,087.92 and 1,242.88 is: 1,715.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,237.66 : 3,087.92 = 1,242.88 : x
  2. Step 2: Convert to fraction form
    2,237.66/3,087.92 = 1,242.88/x
  3. Step 3: Cross multiply
    2,237.66x = 3,087.92 × 1,242.88
  4. Step 4: Simplify right side
    2,237.66x = 3,837,909.40
  5. Step 5: Solve for x
    x = 3,837,909.40/2,237.66
  6. Step 6: Final answer
    x = 1,715.15

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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.