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Finding the Fourth Proportional to 7,328.83, 10,990.92 and 2,648.22

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Solution

The fourth proportional to 7,328.83, 10,990.92 and 2,648.22 is: 3,971.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.83 : 10,990.92 = 2,648.22 : x
  2. Step 2: Convert to fraction form
    7,328.83/10,990.92 = 2,648.22/x
  3. Step 3: Cross multiply
    7,328.83x = 10,990.92 × 2,648.22
  4. Step 4: Simplify right side
    7,328.83x = 29,106,374.16
  5. Step 5: Solve for x
    x = 29,106,374.16/7,328.83
  6. Step 6: Final answer
    x = 3,971.49

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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.