Home / 2,237.42-3,087.68-1,242.79

Finding the Fourth Proportional to 2,237.42, 3,087.68 and 1,242.79

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Solution

The fourth proportional to 2,237.42, 3,087.68 and 1,242.79 is: 1,715.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,237.42 : 3,087.68 = 1,242.79 : x
  2. Step 2: Convert to fraction form
    2,237.42/3,087.68 = 1,242.79/x
  3. Step 3: Cross multiply
    2,237.42x = 3,087.68 × 1,242.79
  4. Step 4: Simplify right side
    2,237.42x = 3,837,316.17
  5. Step 5: Solve for x
    x = 3,837,316.17/2,237.42
  6. Step 6: Final answer
    x = 1,715.07

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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.