Home / 2,240.61-3,087.68-1,681.71

Finding the Fourth Proportional to 2,240.61, 3,087.68 and 1,681.71

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Solution

The fourth proportional to 2,240.61, 3,087.68 and 1,681.71 is: 2,317.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.61 : 3,087.68 = 1,681.71 : x
  2. Step 2: Convert to fraction form
    2,240.61/3,087.68 = 1,681.71/x
  3. Step 3: Cross multiply
    2,240.61x = 3,087.68 × 1,681.71
  4. Step 4: Simplify right side
    2,240.61x = 5,192,573.92
  5. Step 5: Solve for x
    x = 5,192,573.92/2,240.61
  6. Step 6: Final answer
    x = 2,317.48

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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.