Home / 3,780.95-5,670.78-2,681.97

Finding the Fourth Proportional to 3,780.95, 5,670.78 and 2,681.97

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Solution

The fourth proportional to 3,780.95, 5,670.78 and 2,681.97 is: 4,022.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.95 : 5,670.78 = 2,681.97 : x
  2. Step 2: Convert to fraction form
    3,780.95/5,670.78 = 2,681.97/x
  3. Step 3: Cross multiply
    3,780.95x = 5,670.78 × 2,681.97
  4. Step 4: Simplify right side
    3,780.95x = 15,208,861.84
  5. Step 5: Solve for x
    x = 15,208,861.84/3,780.95
  6. Step 6: Final answer
    x = 4,022.50

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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.