Home / 3,325.22-4,987.80-860.02

Finding the Fourth Proportional to 3,325.22, 4,987.80 and 860.02

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Solution

The fourth proportional to 3,325.22, 4,987.80 and 860.02 is: 1,290.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,325.22 : 4,987.80 = 860.02 : x
  2. Step 2: Convert to fraction form
    3,325.22/4,987.80 = 860.02/x
  3. Step 3: Cross multiply
    3,325.22x = 4,987.80 × 860.02
  4. Step 4: Simplify right side
    3,325.22x = 4,289,607.76
  5. Step 5: Solve for x
    x = 4,289,607.76/3,325.22
  6. Step 6: Final answer
    x = 1,290.02

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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.