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Finding the Fourth Proportional to 2,659.95, 3,985.07 and 1,927.71

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Solution

The fourth proportional to 2,659.95, 3,985.07 and 1,927.71 is: 2,888.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659.95 : 3,985.07 = 1,927.71 : x
  2. Step 2: Convert to fraction form
    2,659.95/3,985.07 = 1,927.71/x
  3. Step 3: Cross multiply
    2,659.95x = 3,985.07 × 1,927.71
  4. Step 4: Simplify right side
    2,659.95x = 7,682,049.65
  5. Step 5: Solve for x
    x = 7,682,049.65/2,659.95
  6. Step 6: Final answer
    x = 2,888.04

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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.