Home / 3,618.61-5,419.41-1,763.91

Finding the Fourth Proportional to 3,618.61, 5,419.41 and 1,763.91

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Solution

The fourth proportional to 3,618.61, 5,419.41 and 1,763.91 is: 2,641.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.61 : 5,419.41 = 1,763.91 : x
  2. Step 2: Convert to fraction form
    3,618.61/5,419.41 = 1,763.91/x
  3. Step 3: Cross multiply
    3,618.61x = 5,419.41 × 1,763.91
  4. Step 4: Simplify right side
    3,618.61x = 9,559,371.82
  5. Step 5: Solve for x
    x = 9,559,371.82/3,618.61
  6. Step 6: Final answer
    x = 2,641.72

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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.