Home / 3,073.21-4,239.68-2,078.13

Finding the Fourth Proportional to 3,073.21, 4,239.68 and 2,078.13

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Solution

The fourth proportional to 3,073.21, 4,239.68 and 2,078.13 is: 2,866.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,073.21 : 4,239.68 = 2,078.13 : x
  2. Step 2: Convert to fraction form
    3,073.21/4,239.68 = 2,078.13/x
  3. Step 3: Cross multiply
    3,073.21x = 4,239.68 × 2,078.13
  4. Step 4: Simplify right side
    3,073.21x = 8,810,606.20
  5. Step 5: Solve for x
    x = 8,810,606.20/3,073.21
  6. Step 6: Final answer
    x = 2,866.91

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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.