Home / 4,687.20-7,024.40-3,823.20

Finding the Fourth Proportional to 4,687.20, 7,024.40 and 3,823.20

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Solution

The fourth proportional to 4,687.20, 7,024.40 and 3,823.20 is: 5,729.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,687.20 : 7,024.40 = 3,823.20 : x
  2. Step 2: Convert to fraction form
    4,687.20/7,024.40 = 3,823.20/x
  3. Step 3: Cross multiply
    4,687.20x = 7,024.40 × 3,823.20
  4. Step 4: Simplify right side
    4,687.20x = 26,855,686.08
  5. Step 5: Solve for x
    x = 26,855,686.08/4,687.20
  6. Step 6: Final answer
    x = 5,729.58

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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.