Home / 3,545.21-5,329.83-2,856.71

Finding the Fourth Proportional to 3,545.21, 5,329.83 and 2,856.71

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Solution

The fourth proportional to 3,545.21, 5,329.83 and 2,856.71 is: 4,294.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.21 : 5,329.83 = 2,856.71 : x
  2. Step 2: Convert to fraction form
    3,545.21/5,329.83 = 2,856.71/x
  3. Step 3: Cross multiply
    3,545.21x = 5,329.83 × 2,856.71
  4. Step 4: Simplify right side
    3,545.21x = 15,225,778.66
  5. Step 5: Solve for x
    x = 15,225,778.66/3,545.21
  6. Step 6: Final answer
    x = 4,294.75

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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.