Home / 3,617.85-5,426.78-1,020.86

Finding the Fourth Proportional to 3,617.85, 5,426.78 and 1,020.86

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Solution

The fourth proportional to 3,617.85, 5,426.78 and 1,020.86 is: 1,531.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617.85 : 5,426.78 = 1,020.86 : x
  2. Step 2: Convert to fraction form
    3,617.85/5,426.78 = 1,020.86/x
  3. Step 3: Cross multiply
    3,617.85x = 5,426.78 × 1,020.86
  4. Step 4: Simplify right side
    3,617.85x = 5,539,950.39
  5. Step 5: Solve for x
    x = 5,539,950.39/3,617.85
  6. Step 6: Final answer
    x = 1,531.28

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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.