Home / 4,391.12-6,578.04-2,909.36

Finding the Fourth Proportional to 4,391.12, 6,578.04 and 2,909.36

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Solution

The fourth proportional to 4,391.12, 6,578.04 and 2,909.36 is: 4,358.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,391.12 : 6,578.04 = 2,909.36 : x
  2. Step 2: Convert to fraction form
    4,391.12/6,578.04 = 2,909.36/x
  3. Step 3: Cross multiply
    4,391.12x = 6,578.04 × 2,909.36
  4. Step 4: Simplify right side
    4,391.12x = 19,137,886.45
  5. Step 5: Solve for x
    x = 19,137,886.45/4,391.12
  6. Step 6: Final answer
    x = 4,358.32

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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.