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Finding the Fourth Proportional to 5,491.44, 7,581.63 and 4,230.12

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Solution

The fourth proportional to 5,491.44, 7,581.63 and 4,230.12 is: 5,840.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,491.44 : 7,581.63 = 4,230.12 : x
  2. Step 2: Convert to fraction form
    5,491.44/7,581.63 = 4,230.12/x
  3. Step 3: Cross multiply
    5,491.44x = 7,581.63 × 4,230.12
  4. Step 4: Simplify right side
    5,491.44x = 32,071,204.70
  5. Step 5: Solve for x
    x = 32,071,204.70/5,491.44
  6. Step 6: Final answer
    x = 5,840.22

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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.