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Finding the Fourth Proportional to 2,984.96, 4,119.23 and 1,658.79

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Solution

The fourth proportional to 2,984.96, 4,119.23 and 1,658.79 is: 2,289.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,984.96 : 4,119.23 = 1,658.79 : x
  2. Step 2: Convert to fraction form
    2,984.96/4,119.23 = 1,658.79/x
  3. Step 3: Cross multiply
    2,984.96x = 4,119.23 × 1,658.79
  4. Step 4: Simplify right side
    2,984.96x = 6,832,941.68
  5. Step 5: Solve for x
    x = 6,832,941.68/2,984.96
  6. Step 6: Final answer
    x = 2,289.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.