Home / 7,470.07-11,205.14-2,788.88

Finding the Fourth Proportional to 7,470.07, 11,205.14 and 2,788.88

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Solution

The fourth proportional to 7,470.07, 11,205.14 and 2,788.88 is: 4,183.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,470.07 : 11,205.14 = 2,788.88 : x
  2. Step 2: Convert to fraction form
    7,470.07/11,205.14 = 2,788.88/x
  3. Step 3: Cross multiply
    7,470.07x = 11,205.14 × 2,788.88
  4. Step 4: Simplify right side
    7,470.07x = 31,249,783.90
  5. Step 5: Solve for x
    x = 31,249,783.90/7,470.07
  6. Step 6: Final answer
    x = 4,183.33

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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.