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Finding the Fourth Proportional to 1,643.55, 2,464.68 and 603.24

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Solution

The fourth proportional to 1,643.55, 2,464.68 and 603.24 is: 904.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643.55 : 2,464.68 = 603.24 : x
  2. Step 2: Convert to fraction form
    1,643.55/2,464.68 = 603.24/x
  3. Step 3: Cross multiply
    1,643.55x = 2,464.68 × 603.24
  4. Step 4: Simplify right side
    1,643.55x = 1,486,793.56
  5. Step 5: Solve for x
    x = 1,486,793.56/1,643.55
  6. Step 6: Final answer
    x = 904.62

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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.