Home / 7,335.20-11,002.70-1,788.50

Finding the Fourth Proportional to 7,335.20, 11,002.70 and 1,788.50

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Solution

The fourth proportional to 7,335.20, 11,002.70 and 1,788.50 is: 2,682.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,335.20 : 11,002.70 = 1,788.50 : x
  2. Step 2: Convert to fraction form
    7,335.20/11,002.70 = 1,788.50/x
  3. Step 3: Cross multiply
    7,335.20x = 11,002.70 × 1,788.50
  4. Step 4: Simplify right side
    7,335.20x = 19,678,328.95
  5. Step 5: Solve for x
    x = 19,678,328.95/7,335.20
  6. Step 6: Final answer
    x = 2,682.73

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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.