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Finding the Fourth Proportional to 4,290.82, 6,437.82 and 1,479.94

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Solution

The fourth proportional to 4,290.82, 6,437.82 and 1,479.94 is: 2,220.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,290.82 : 6,437.82 = 1,479.94 : x
  2. Step 2: Convert to fraction form
    4,290.82/6,437.82 = 1,479.94/x
  3. Step 3: Cross multiply
    4,290.82x = 6,437.82 × 1,479.94
  4. Step 4: Simplify right side
    4,290.82x = 9,527,587.33
  5. Step 5: Solve for x
    x = 9,527,587.33/4,290.82
  6. Step 6: Final answer
    x = 2,220.46

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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.