Home / 5,718.10-7,890.94-3,200.44

Finding the Fourth Proportional to 5,718.10, 7,890.94 and 3,200.44

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Solution

The fourth proportional to 5,718.10, 7,890.94 and 3,200.44 is: 4,416.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,718.10 : 7,890.94 = 3,200.44 : x
  2. Step 2: Convert to fraction form
    5,718.10/7,890.94 = 3,200.44/x
  3. Step 3: Cross multiply
    5,718.10x = 7,890.94 × 3,200.44
  4. Step 4: Simplify right side
    5,718.10x = 25,254,480.01
  5. Step 5: Solve for x
    x = 25,254,480.01/5,718.10
  6. Step 6: Final answer
    x = 4,416.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.