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Finding the Fourth Proportional to 1,993.52, 2,984.78 and 1,505.08

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Solution

The fourth proportional to 1,993.52, 2,984.78 and 1,505.08 is: 2,253.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993.52 : 2,984.78 = 1,505.08 : x
  2. Step 2: Convert to fraction form
    1,993.52/2,984.78 = 1,505.08/x
  3. Step 3: Cross multiply
    1,993.52x = 2,984.78 × 1,505.08
  4. Step 4: Simplify right side
    1,993.52x = 4,492,332.68
  5. Step 5: Solve for x
    x = 4,492,332.68/1,993.52
  6. Step 6: Final answer
    x = 2,253.47

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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.