Home / 3,636.20-5,452.47-1,689.77

Finding the Fourth Proportional to 3,636.20, 5,452.47 and 1,689.77

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Solution

The fourth proportional to 3,636.20, 5,452.47 and 1,689.77 is: 2,533.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,636.20 : 5,452.47 = 1,689.77 : x
  2. Step 2: Convert to fraction form
    3,636.20/5,452.47 = 1,689.77/x
  3. Step 3: Cross multiply
    3,636.20x = 5,452.47 × 1,689.77
  4. Step 4: Simplify right side
    3,636.20x = 9,213,392.97
  5. Step 5: Solve for x
    x = 9,213,392.97/3,636.20
  6. Step 6: Final answer
    x = 2,533.80

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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.