Home / 5,491.40-8,232.30-4,908.20

Finding the Fourth Proportional to 5,491.40, 8,232.30 and 4,908.20

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Solution

The fourth proportional to 5,491.40, 8,232.30 and 4,908.20 is: 7,358.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,491.40 : 8,232.30 = 4,908.20 : x
  2. Step 2: Convert to fraction form
    5,491.40/8,232.30 = 4,908.20/x
  3. Step 3: Cross multiply
    5,491.40x = 8,232.30 × 4,908.20
  4. Step 4: Simplify right side
    5,491.40x = 40,405,774.86
  5. Step 5: Solve for x
    x = 40,405,774.86/5,491.40
  6. Step 6: Final answer
    x = 7,358.01

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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.