Home / 5,640.87-8,461.25-2,175.69

Finding the Fourth Proportional to 5,640.87, 8,461.25 and 2,175.69

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Solution

The fourth proportional to 5,640.87, 8,461.25 and 2,175.69 is: 3,263.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,640.87 : 8,461.25 = 2,175.69 : x
  2. Step 2: Convert to fraction form
    5,640.87/8,461.25 = 2,175.69/x
  3. Step 3: Cross multiply
    5,640.87x = 8,461.25 × 2,175.69
  4. Step 4: Simplify right side
    5,640.87x = 18,409,046.13
  5. Step 5: Solve for x
    x = 18,409,046.13/5,640.87
  6. Step 6: Final answer
    x = 3,263.51

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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.