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Finding the Fourth Proportional to 4,993.68, 7,490.10 and 2,912.34

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Solution

The fourth proportional to 4,993.68, 7,490.10 and 2,912.34 is: 4,368.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,993.68 : 7,490.10 = 2,912.34 : x
  2. Step 2: Convert to fraction form
    4,993.68/7,490.10 = 2,912.34/x
  3. Step 3: Cross multiply
    4,993.68x = 7,490.10 × 2,912.34
  4. Step 4: Simplify right side
    4,993.68x = 21,813,717.83
  5. Step 5: Solve for x
    x = 21,813,717.83/4,993.68
  6. Step 6: Final answer
    x = 4,368.27

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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.