Home / 3,619.43-5,438.25-2,303.78

Finding the Fourth Proportional to 3,619.43, 5,438.25 and 2,303.78

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Solution

The fourth proportional to 3,619.43, 5,438.25 and 2,303.78 is: 3,461.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.43 : 5,438.25 = 2,303.78 : x
  2. Step 2: Convert to fraction form
    3,619.43/5,438.25 = 2,303.78/x
  3. Step 3: Cross multiply
    3,619.43x = 5,438.25 × 2,303.78
  4. Step 4: Simplify right side
    3,619.43x = 12,528,545.18
  5. Step 5: Solve for x
    x = 12,528,545.18/3,619.43
  6. Step 6: Final answer
    x = 3,461.47

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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.