Home / 2,904.49-4,008.22-1,578.20

Finding the Fourth Proportional to 2,904.49, 4,008.22 and 1,578.20

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Solution

The fourth proportional to 2,904.49, 4,008.22 and 1,578.20 is: 2,177.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,904.49 : 4,008.22 = 1,578.20 : x
  2. Step 2: Convert to fraction form
    2,904.49/4,008.22 = 1,578.20/x
  3. Step 3: Cross multiply
    2,904.49x = 4,008.22 × 1,578.20
  4. Step 4: Simplify right side
    2,904.49x = 6,325,778.88
  5. Step 5: Solve for x
    x = 6,325,778.88/2,904.49
  6. Step 6: Final answer
    x = 2,177.93

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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.