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Finding the Fourth Proportional to 1,466.69, 2,200.53 and 918.21

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Solution

The fourth proportional to 1,466.69, 2,200.53 and 918.21 is: 1,377.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,466.69 : 2,200.53 = 918.21 : x
  2. Step 2: Convert to fraction form
    1,466.69/2,200.53 = 918.21/x
  3. Step 3: Cross multiply
    1,466.69x = 2,200.53 × 918.21
  4. Step 4: Simplify right side
    1,466.69x = 2,020,560.35
  5. Step 5: Solve for x
    x = 2,020,560.35/1,466.69
  6. Step 6: Final answer
    x = 1,377.64

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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.