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Finding the Fourth Proportional to 1,628.39, 2,441.52 and 898.47

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Solution

The fourth proportional to 1,628.39, 2,441.52 and 898.47 is: 1,347.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628.39 : 2,441.52 = 898.47 : x
  2. Step 2: Convert to fraction form
    1,628.39/2,441.52 = 898.47/x
  3. Step 3: Cross multiply
    1,628.39x = 2,441.52 × 898.47
  4. Step 4: Simplify right side
    1,628.39x = 2,193,632.47
  5. Step 5: Solve for x
    x = 2,193,632.47/1,628.39
  6. Step 6: Final answer
    x = 1,347.12

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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.