Home / 2,237.40-3,087.81-1,242.84

Finding the Fourth Proportional to 2,237.40, 3,087.81 and 1,242.84

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Solution

The fourth proportional to 2,237.40, 3,087.81 and 1,242.84 is: 1,715.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,237.40 : 3,087.81 = 1,242.84 : x
  2. Step 2: Convert to fraction form
    2,237.40/3,087.81 = 1,242.84/x
  3. Step 3: Cross multiply
    2,237.40x = 3,087.81 × 1,242.84
  4. Step 4: Simplify right side
    2,237.40x = 3,837,653.78
  5. Step 5: Solve for x
    x = 3,837,653.78/2,237.40
  6. Step 6: Final answer
    x = 1,715.23

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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.