Home / 1,645.42-2,468.73-1,338.02

Finding the Fourth Proportional to 1,645.42, 2,468.73 and 1,338.02

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Solution

The fourth proportional to 1,645.42, 2,468.73 and 1,338.02 is: 2,007.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645.42 : 2,468.73 = 1,338.02 : x
  2. Step 2: Convert to fraction form
    1,645.42/2,468.73 = 1,338.02/x
  3. Step 3: Cross multiply
    1,645.42x = 2,468.73 × 1,338.02
  4. Step 4: Simplify right side
    1,645.42x = 3,303,210.11
  5. Step 5: Solve for x
    x = 3,303,210.11/1,645.42
  6. Step 6: Final answer
    x = 2,007.52

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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.