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Finding the Fourth Proportional to 7,490.75, 11,236.08 and 1,944.08

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Solution

The fourth proportional to 7,490.75, 11,236.08 and 1,944.08 is: 2,916.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,490.75 : 11,236.08 = 1,944.08 : x
  2. Step 2: Convert to fraction form
    7,490.75/11,236.08 = 1,944.08/x
  3. Step 3: Cross multiply
    7,490.75x = 11,236.08 × 1,944.08
  4. Step 4: Simplify right side
    7,490.75x = 21,843,838.41
  5. Step 5: Solve for x
    x = 21,843,838.41/7,490.75
  6. Step 6: Final answer
    x = 2,916.11

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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.