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Finding the Fourth Proportional to 2,993.19, 4,489.80 and 1,045.39

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Solution

The fourth proportional to 2,993.19, 4,489.80 and 1,045.39 is: 1,568.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,993.19 : 4,489.80 = 1,045.39 : x
  2. Step 2: Convert to fraction form
    2,993.19/4,489.80 = 1,045.39/x
  3. Step 3: Cross multiply
    2,993.19x = 4,489.80 × 1,045.39
  4. Step 4: Simplify right side
    2,993.19x = 4,693,592.02
  5. Step 5: Solve for x
    x = 4,693,592.02/2,993.19
  6. Step 6: Final answer
    x = 1,568.09

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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.