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Finding the Fourth Proportional to 2,679.74, 4,019.44 and 1,591.02

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Solution

The fourth proportional to 2,679.74, 4,019.44 and 1,591.02 is: 2,386.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.74 : 4,019.44 = 1,591.02 : x
  2. Step 2: Convert to fraction form
    2,679.74/4,019.44 = 1,591.02/x
  3. Step 3: Cross multiply
    2,679.74x = 4,019.44 × 1,591.02
  4. Step 4: Simplify right side
    2,679.74x = 6,395,009.43
  5. Step 5: Solve for x
    x = 6,395,009.43/2,679.74
  6. Step 6: Final answer
    x = 2,386.43

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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.