Home / 2,904.88-4,008.72-1,578.56

Finding the Fourth Proportional to 2,904.88, 4,008.72 and 1,578.56

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Solution

The fourth proportional to 2,904.88, 4,008.72 and 1,578.56 is: 2,178.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,904.88 : 4,008.72 = 1,578.56 : x
  2. Step 2: Convert to fraction form
    2,904.88/4,008.72 = 1,578.56/x
  3. Step 3: Cross multiply
    2,904.88x = 4,008.72 × 1,578.56
  4. Step 4: Simplify right side
    2,904.88x = 6,328,005.04
  5. Step 5: Solve for x
    x = 6,328,005.04/2,904.88
  6. Step 6: Final answer
    x = 2,178.40

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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.