Home / 5,857.20-8,069.28-4,085.68

Finding the Fourth Proportional to 5,857.20, 8,069.28 and 4,085.68

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Solution

The fourth proportional to 5,857.20, 8,069.28 and 4,085.68 is: 5,628.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,857.20 : 8,069.28 = 4,085.68 : x
  2. Step 2: Convert to fraction form
    5,857.20/8,069.28 = 4,085.68/x
  3. Step 3: Cross multiply
    5,857.20x = 8,069.28 × 4,085.68
  4. Step 4: Simplify right side
    5,857.20x = 32,968,495.91
  5. Step 5: Solve for x
    x = 32,968,495.91/5,857.20
  6. Step 6: Final answer
    x = 5,628.71

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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.