Home / 3,865.20-5,799.90-2,110.10

Finding the Fourth Proportional to 3,865.20, 5,799.90 and 2,110.10

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Solution

The fourth proportional to 3,865.20, 5,799.90 and 2,110.10 is: 3,166.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865.20 : 5,799.90 = 2,110.10 : x
  2. Step 2: Convert to fraction form
    3,865.20/5,799.90 = 2,110.10/x
  3. Step 3: Cross multiply
    3,865.20x = 5,799.90 × 2,110.10
  4. Step 4: Simplify right side
    3,865.20x = 12,238,368.99
  5. Step 5: Solve for x
    x = 12,238,368.99/3,865.20
  6. Step 6: Final answer
    x = 3,166.30

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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.