Home / 3,610.90-5,429.70-3,479.68

Finding the Fourth Proportional to 3,610.90, 5,429.70 and 3,479.68

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Solution

The fourth proportional to 3,610.90, 5,429.70 and 3,479.68 is: 5,232.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.90 : 5,429.70 = 3,479.68 : x
  2. Step 2: Convert to fraction form
    3,610.90/5,429.70 = 3,479.68/x
  3. Step 3: Cross multiply
    3,610.90x = 5,429.70 × 3,479.68
  4. Step 4: Simplify right side
    3,610.90x = 18,893,618.50
  5. Step 5: Solve for x
    x = 18,893,618.50/3,610.90
  6. Step 6: Final answer
    x = 5,232.38

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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.