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Finding the Fourth Proportional to 5,412.24, 8,100.24 and 4,624.80

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Solution

The fourth proportional to 5,412.24, 8,100.24 and 4,624.80 is: 6,921.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.24 : 8,100.24 = 4,624.80 : x
  2. Step 2: Convert to fraction form
    5,412.24/8,100.24 = 4,624.80/x
  3. Step 3: Cross multiply
    5,412.24x = 8,100.24 × 4,624.80
  4. Step 4: Simplify right side
    5,412.24x = 37,461,989.95
  5. Step 5: Solve for x
    x = 37,461,989.95/5,412.24
  6. Step 6: Final answer
    x = 6,921.72

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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.