Home / 3,689.08-5,530.86-1,222.60

Finding the Fourth Proportional to 3,689.08, 5,530.86 and 1,222.60

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Solution

The fourth proportional to 3,689.08, 5,530.86 and 1,222.60 is: 1,832.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,689.08 : 5,530.86 = 1,222.60 : x
  2. Step 2: Convert to fraction form
    3,689.08/5,530.86 = 1,222.60/x
  3. Step 3: Cross multiply
    3,689.08x = 5,530.86 × 1,222.60
  4. Step 4: Simplify right side
    3,689.08x = 6,762,029.44
  5. Step 5: Solve for x
    x = 6,762,029.44/3,689.08
  6. Step 6: Final answer
    x = 1,832.99

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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.