Home / 1,645.24-2,468.34-671.16

Finding the Fourth Proportional to 1,645.24, 2,468.34 and 671.16

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Solution

The fourth proportional to 1,645.24, 2,468.34 and 671.16 is: 1,006.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645.24 : 2,468.34 = 671.16 : x
  2. Step 2: Convert to fraction form
    1,645.24/2,468.34 = 671.16/x
  3. Step 3: Cross multiply
    1,645.24x = 2,468.34 × 671.16
  4. Step 4: Simplify right side
    1,645.24x = 1,656,651.07
  5. Step 5: Solve for x
    x = 1,656,651.07/1,645.24
  6. Step 6: Final answer
    x = 1,006.94

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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.