Home / 2,799.36-4,190.93-2,108.93

Finding the Fourth Proportional to 2,799.36, 4,190.93 and 2,108.93

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Solution

The fourth proportional to 2,799.36, 4,190.93 and 2,108.93 is: 3,157.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.36 : 4,190.93 = 2,108.93 : x
  2. Step 2: Convert to fraction form
    2,799.36/4,190.93 = 2,108.93/x
  3. Step 3: Cross multiply
    2,799.36x = 4,190.93 × 2,108.93
  4. Step 4: Simplify right side
    2,799.36x = 8,838,367.46
  5. Step 5: Solve for x
    x = 8,838,367.46/2,799.36
  6. Step 6: Final answer
    x = 3,157.29

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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.