Home / 5,445.20-8,106.22-5,412.80

Finding the Fourth Proportional to 5,445.20, 8,106.22 and 5,412.80

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Solution

The fourth proportional to 5,445.20, 8,106.22 and 5,412.80 is: 8,057.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.20 : 8,106.22 = 5,412.80 : x
  2. Step 2: Convert to fraction form
    5,445.20/8,106.22 = 5,412.80/x
  3. Step 3: Cross multiply
    5,445.20x = 8,106.22 × 5,412.80
  4. Step 4: Simplify right side
    5,445.20x = 43,877,347.62
  5. Step 5: Solve for x
    x = 43,877,347.62/5,445.20
  6. Step 6: Final answer
    x = 8,057.99

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.