Home / 2,479.35-3,422.07-1,485.21

Finding the Fourth Proportional to 2,479.35, 3,422.07 and 1,485.21

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Solution

The fourth proportional to 2,479.35, 3,422.07 and 1,485.21 is: 2,049.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.35 : 3,422.07 = 1,485.21 : x
  2. Step 2: Convert to fraction form
    2,479.35/3,422.07 = 1,485.21/x
  3. Step 3: Cross multiply
    2,479.35x = 3,422.07 × 1,485.21
  4. Step 4: Simplify right side
    2,479.35x = 5,082,492.58
  5. Step 5: Solve for x
    x = 5,082,492.58/2,479.35
  6. Step 6: Final answer
    x = 2,049.93

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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.