Home / 2,799.12-4,215.34-2,438.26

Finding the Fourth Proportional to 2,799.12, 4,215.34 and 2,438.26

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Solution

The fourth proportional to 2,799.12, 4,215.34 and 2,438.26 is: 3,671.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.12 : 4,215.34 = 2,438.26 : x
  2. Step 2: Convert to fraction form
    2,799.12/4,215.34 = 2,438.26/x
  3. Step 3: Cross multiply
    2,799.12x = 4,215.34 × 2,438.26
  4. Step 4: Simplify right side
    2,799.12x = 10,278,094.91
  5. Step 5: Solve for x
    x = 10,278,094.91/2,799.12
  6. Step 6: Final answer
    x = 3,671.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.