Home / 3,189.51-4,776.71-2,015.42

Finding the Fourth Proportional to 3,189.51, 4,776.71 and 2,015.42

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Solution

The fourth proportional to 3,189.51, 4,776.71 and 2,015.42 is: 3,018.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.51 : 4,776.71 = 2,015.42 : x
  2. Step 2: Convert to fraction form
    3,189.51/4,776.71 = 2,015.42/x
  3. Step 3: Cross multiply
    3,189.51x = 4,776.71 × 2,015.42
  4. Step 4: Simplify right side
    3,189.51x = 9,627,042.91
  5. Step 5: Solve for x
    x = 9,627,042.91/3,189.51
  6. Step 6: Final answer
    x = 3,018.35

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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.