Home / 2,659.07-3,990.26-1,015.79

Finding the Fourth Proportional to 2,659.07, 3,990.26 and 1,015.79

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Solution

The fourth proportional to 2,659.07, 3,990.26 and 1,015.79 is: 1,524.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659.07 : 3,990.26 = 1,015.79 : x
  2. Step 2: Convert to fraction form
    2,659.07/3,990.26 = 1,015.79/x
  3. Step 3: Cross multiply
    2,659.07x = 3,990.26 × 1,015.79
  4. Step 4: Simplify right side
    2,659.07x = 4,053,248.79
  5. Step 5: Solve for x
    x = 4,053,248.79/2,659.07
  6. Step 6: Final answer
    x = 1,524.31

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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.