Home / 4,840.72-6,679.78-2,715.95

Finding the Fourth Proportional to 4,840.72, 6,679.78 and 2,715.95

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Solution

The fourth proportional to 4,840.72, 6,679.78 and 2,715.95 is: 3,747.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,840.72 : 6,679.78 = 2,715.95 : x
  2. Step 2: Convert to fraction form
    4,840.72/6,679.78 = 2,715.95/x
  3. Step 3: Cross multiply
    4,840.72x = 6,679.78 × 2,715.95
  4. Step 4: Simplify right side
    4,840.72x = 18,141,948.49
  5. Step 5: Solve for x
    x = 18,141,948.49/4,840.72
  6. Step 6: Final answer
    x = 3,747.78

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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.