Home / 3,638.24-5,453.10-1,686.32

Finding the Fourth Proportional to 3,638.24, 5,453.10 and 1,686.32

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Solution

The fourth proportional to 3,638.24, 5,453.10 and 1,686.32 is: 2,527.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.24 : 5,453.10 = 1,686.32 : x
  2. Step 2: Convert to fraction form
    3,638.24/5,453.10 = 1,686.32/x
  3. Step 3: Cross multiply
    3,638.24x = 5,453.10 × 1,686.32
  4. Step 4: Simplify right side
    3,638.24x = 9,195,671.59
  5. Step 5: Solve for x
    x = 9,195,671.59/3,638.24
  6. Step 6: Final answer
    x = 2,527.51

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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.