Home / 4,186.32-6,281.76-1,720.56

Finding the Fourth Proportional to 4,186.32, 6,281.76 and 1,720.56

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Solution

The fourth proportional to 4,186.32, 6,281.76 and 1,720.56 is: 2,581.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,186.32 : 6,281.76 = 1,720.56 : x
  2. Step 2: Convert to fraction form
    4,186.32/6,281.76 = 1,720.56/x
  3. Step 3: Cross multiply
    4,186.32x = 6,281.76 × 1,720.56
  4. Step 4: Simplify right side
    4,186.32x = 10,808,144.99
  5. Step 5: Solve for x
    x = 10,808,144.99/4,186.32
  6. Step 6: Final answer
    x = 2,581.78

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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.