Home / 5,392.20-8,090.10-4,811.52

Finding the Fourth Proportional to 5,392.20, 8,090.10 and 4,811.52

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Solution

The fourth proportional to 5,392.20, 8,090.10 and 4,811.52 is: 7,218.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,392.20 : 8,090.10 = 4,811.52 : x
  2. Step 2: Convert to fraction form
    5,392.20/8,090.10 = 4,811.52/x
  3. Step 3: Cross multiply
    5,392.20x = 8,090.10 × 4,811.52
  4. Step 4: Simplify right side
    5,392.20x = 38,925,677.95
  5. Step 5: Solve for x
    x = 38,925,677.95/5,392.20
  6. Step 6: Final answer
    x = 7,218.89

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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.