Home / 3,148.25-4,342.70-2,087.15

Finding the Fourth Proportional to 3,148.25, 4,342.70 and 2,087.15

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Solution

The fourth proportional to 3,148.25, 4,342.70 and 2,087.15 is: 2,879.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.25 : 4,342.70 = 2,087.15 : x
  2. Step 2: Convert to fraction form
    3,148.25/4,342.70 = 2,087.15/x
  3. Step 3: Cross multiply
    3,148.25x = 4,342.70 × 2,087.15
  4. Step 4: Simplify right side
    3,148.25x = 9,063,855.87
  5. Step 5: Solve for x
    x = 9,063,855.87/3,148.25
  6. Step 6: Final answer
    x = 2,879.01

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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.