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Finding the Fourth Proportional to 2,951.10, 4,072.53 and 1,624.80

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Solution

The fourth proportional to 2,951.10, 4,072.53 and 1,624.80 is: 2,242.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,951.10 : 4,072.53 = 1,624.80 : x
  2. Step 2: Convert to fraction form
    2,951.10/4,072.53 = 1,624.80/x
  3. Step 3: Cross multiply
    2,951.10x = 4,072.53 × 1,624.80
  4. Step 4: Simplify right side
    2,951.10x = 6,617,046.74
  5. Step 5: Solve for x
    x = 6,617,046.74/2,951.10
  6. Step 6: Final answer
    x = 2,242.23

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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.