Home / 7,420.86-11,132.73-2,490.57

Finding the Fourth Proportional to 7,420.86, 11,132.73 and 2,490.57

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Solution

The fourth proportional to 7,420.86, 11,132.73 and 2,490.57 is: 3,736.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.86 : 11,132.73 = 2,490.57 : x
  2. Step 2: Convert to fraction form
    7,420.86/11,132.73 = 2,490.57/x
  3. Step 3: Cross multiply
    7,420.86x = 11,132.73 × 2,490.57
  4. Step 4: Simplify right side
    7,420.86x = 27,726,843.36
  5. Step 5: Solve for x
    x = 27,726,843.36/7,420.86
  6. Step 6: Final answer
    x = 3,736.34

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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.