Home / 3,886.08-5,363.39-2,315.08

Finding the Fourth Proportional to 3,886.08, 5,363.39 and 2,315.08

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Solution

The fourth proportional to 3,886.08, 5,363.39 and 2,315.08 is: 3,195.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886.08 : 5,363.39 = 2,315.08 : x
  2. Step 2: Convert to fraction form
    3,886.08/5,363.39 = 2,315.08/x
  3. Step 3: Cross multiply
    3,886.08x = 5,363.39 × 2,315.08
  4. Step 4: Simplify right side
    3,886.08x = 12,416,676.92
  5. Step 5: Solve for x
    x = 12,416,676.92/3,886.08
  6. Step 6: Final answer
    x = 3,195.17

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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.