Home / 3,680.74-5,521.77-1,217.33

Finding the Fourth Proportional to 3,680.74, 5,521.77 and 1,217.33

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Solution

The fourth proportional to 3,680.74, 5,521.77 and 1,217.33 is: 1,826.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.74 : 5,521.77 = 1,217.33 : x
  2. Step 2: Convert to fraction form
    3,680.74/5,521.77 = 1,217.33/x
  3. Step 3: Cross multiply
    3,680.74x = 5,521.77 × 1,217.33
  4. Step 4: Simplify right side
    3,680.74x = 6,721,809.37
  5. Step 5: Solve for x
    x = 6,721,809.37/3,680.74
  6. Step 6: Final answer
    x = 1,826.21

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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.