Home / 7,786.49-11,681.28-2,856.18

Finding the Fourth Proportional to 7,786.49, 11,681.28 and 2,856.18

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Solution

The fourth proportional to 7,786.49, 11,681.28 and 2,856.18 is: 4,284.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.49 : 11,681.28 = 2,856.18 : x
  2. Step 2: Convert to fraction form
    7,786.49/11,681.28 = 2,856.18/x
  3. Step 3: Cross multiply
    7,786.49x = 11,681.28 × 2,856.18
  4. Step 4: Simplify right side
    7,786.49x = 33,363,801.97
  5. Step 5: Solve for x
    x = 33,363,801.97/7,786.49
  6. Step 6: Final answer
    x = 4,284.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.