Home / 3,670.26-5,506.07-1,205.78

Finding the Fourth Proportional to 3,670.26, 5,506.07 and 1,205.78

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Solution

The fourth proportional to 3,670.26, 5,506.07 and 1,205.78 is: 1,808.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.26 : 5,506.07 = 1,205.78 : x
  2. Step 2: Convert to fraction form
    3,670.26/5,506.07 = 1,205.78/x
  3. Step 3: Cross multiply
    3,670.26x = 5,506.07 × 1,205.78
  4. Step 4: Simplify right side
    3,670.26x = 6,639,125.86
  5. Step 5: Solve for x
    x = 6,639,125.86/3,670.26
  6. Step 6: Final answer
    x = 1,808.90

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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.