Home / 3,625.79-5,438.69-1,317.47

Finding the Fourth Proportional to 3,625.79, 5,438.69 and 1,317.47

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Solution

The fourth proportional to 3,625.79, 5,438.69 and 1,317.47 is: 1,976.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,625.79 : 5,438.69 = 1,317.47 : x
  2. Step 2: Convert to fraction form
    3,625.79/5,438.69 = 1,317.47/x
  3. Step 3: Cross multiply
    3,625.79x = 5,438.69 × 1,317.47
  4. Step 4: Simplify right side
    3,625.79x = 7,165,310.91
  5. Step 5: Solve for x
    x = 7,165,310.91/3,625.79
  6. Step 6: Final answer
    x = 1,976.21

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1.5x scale

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.