Home / 3,620.58-5,435.30-2,389.02

Finding the Fourth Proportional to 3,620.58, 5,435.30 and 2,389.02

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Solution

The fourth proportional to 3,620.58, 5,435.30 and 2,389.02 is: 3,586.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.58 : 5,435.30 = 2,389.02 : x
  2. Step 2: Convert to fraction form
    3,620.58/5,435.30 = 2,389.02/x
  3. Step 3: Cross multiply
    3,620.58x = 5,435.30 × 2,389.02
  4. Step 4: Simplify right side
    3,620.58x = 12,985,040.41
  5. Step 5: Solve for x
    x = 12,985,040.41/3,620.58
  6. Step 6: Final answer
    x = 3,586.45

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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.