Home / 5,621.15-7,758.44-4,209.18

Finding the Fourth Proportional to 5,621.15, 7,758.44 and 4,209.18

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Solution

The fourth proportional to 5,621.15, 7,758.44 and 4,209.18 is: 5,809.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.15 : 7,758.44 = 4,209.18 : x
  2. Step 2: Convert to fraction form
    5,621.15/7,758.44 = 4,209.18/x
  3. Step 3: Cross multiply
    5,621.15x = 7,758.44 × 4,209.18
  4. Step 4: Simplify right side
    5,621.15x = 32,656,649.43
  5. Step 5: Solve for x
    x = 32,656,649.43/5,621.15
  6. Step 6: Final answer
    x = 5,809.61

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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.