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Finding the Fourth Proportional to 7,328.91, 10,993.38 and 2,648.90

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Solution

The fourth proportional to 7,328.91, 10,993.38 and 2,648.90 is: 3,973.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.91 : 10,993.38 = 2,648.90 : x
  2. Step 2: Convert to fraction form
    7,328.91/10,993.38 = 2,648.90/x
  3. Step 3: Cross multiply
    7,328.91x = 10,993.38 × 2,648.90
  4. Step 4: Simplify right side
    7,328.91x = 29,120,381.83
  5. Step 5: Solve for x
    x = 29,120,381.83/7,328.91
  6. Step 6: Final answer
    x = 3,973.36

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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.