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Finding the Fourth Proportional to 1,464.21, 2,195.91 and 586.71

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Solution

The fourth proportional to 1,464.21, 2,195.91 and 586.71 is: 879.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,464.21 : 2,195.91 = 586.71 : x
  2. Step 2: Convert to fraction form
    1,464.21/2,195.91 = 586.71/x
  3. Step 3: Cross multiply
    1,464.21x = 2,195.91 × 586.71
  4. Step 4: Simplify right side
    1,464.21x = 1,288,362.36
  5. Step 5: Solve for x
    x = 1,288,362.36/1,464.21
  6. Step 6: Final answer
    x = 879.90

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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.