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Finding the Fourth Proportional to 2,984.88, 4,119.06 and 1,658.58

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Solution

The fourth proportional to 2,984.88, 4,119.06 and 1,658.58 is: 2,288.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,984.88 : 4,119.06 = 1,658.58 : x
  2. Step 2: Convert to fraction form
    2,984.88/4,119.06 = 1,658.58/x
  3. Step 3: Cross multiply
    2,984.88x = 4,119.06 × 1,658.58
  4. Step 4: Simplify right side
    2,984.88x = 6,831,790.53
  5. Step 5: Solve for x
    x = 6,831,790.53/2,984.88
  6. Step 6: Final answer
    x = 2,288.80

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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.