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Finding the Fourth Proportional to 2,777.95, 3,834.08 and 1,659.84

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Solution

The fourth proportional to 2,777.95, 3,834.08 and 1,659.84 is: 2,290.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,777.95 : 3,834.08 = 1,659.84 : x
  2. Step 2: Convert to fraction form
    2,777.95/3,834.08 = 1,659.84/x
  3. Step 3: Cross multiply
    2,777.95x = 3,834.08 × 1,659.84
  4. Step 4: Simplify right side
    2,777.95x = 6,363,973.80
  5. Step 5: Solve for x
    x = 6,363,973.80/2,777.95
  6. Step 6: Final answer
    x = 2,290.89

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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.