Home / 1,628.39-2,436.90-1,332.47

Finding the Fourth Proportional to 1,628.39, 2,436.90 and 1,332.47

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Solution

The fourth proportional to 1,628.39, 2,436.90 and 1,332.47 is: 1,994.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628.39 : 2,436.90 = 1,332.47 : x
  2. Step 2: Convert to fraction form
    1,628.39/2,436.90 = 1,332.47/x
  3. Step 3: Cross multiply
    1,628.39x = 2,436.90 × 1,332.47
  4. Step 4: Simplify right side
    1,628.39x = 3,247,083.96
  5. Step 5: Solve for x
    x = 3,247,083.96/1,628.39
  6. Step 6: Final answer
    x = 1,994.05

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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.