Home / 7,351.78-11,023.52-2,420.10

Finding the Fourth Proportional to 7,351.78, 11,023.52 and 2,420.10

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Solution

The fourth proportional to 7,351.78, 11,023.52 and 2,420.10 is: 3,628.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,351.78 : 11,023.52 = 2,420.10 : x
  2. Step 2: Convert to fraction form
    7,351.78/11,023.52 = 2,420.10/x
  3. Step 3: Cross multiply
    7,351.78x = 11,023.52 × 2,420.10
  4. Step 4: Simplify right side
    7,351.78x = 26,678,020.75
  5. Step 5: Solve for x
    x = 26,678,020.75/7,351.78
  6. Step 6: Final answer
    x = 3,628.78

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1.5x scale

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.