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Finding the Fourth Proportional to 4,326.60, 6,490.13 and 1,404.69

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Solution

The fourth proportional to 4,326.60, 6,490.13 and 1,404.69 is: 2,107.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,326.60 : 6,490.13 = 1,404.69 : x
  2. Step 2: Convert to fraction form
    4,326.60/6,490.13 = 1,404.69/x
  3. Step 3: Cross multiply
    4,326.60x = 6,490.13 × 1,404.69
  4. Step 4: Simplify right side
    4,326.60x = 9,116,620.71
  5. Step 5: Solve for x
    x = 9,116,620.71/4,326.60
  6. Step 6: Final answer
    x = 2,107.11

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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.