Home / 5,327.36-7,985.60-1,861.76

Finding the Fourth Proportional to 5,327.36, 7,985.60 and 1,861.76

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Solution

The fourth proportional to 5,327.36, 7,985.60 and 1,861.76 is: 2,790.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,327.36 : 7,985.60 = 1,861.76 : x
  2. Step 2: Convert to fraction form
    5,327.36/7,985.60 = 1,861.76/x
  3. Step 3: Cross multiply
    5,327.36x = 7,985.60 × 1,861.76
  4. Step 4: Simplify right side
    5,327.36x = 14,867,270.66
  5. Step 5: Solve for x
    x = 14,867,270.66/5,327.36
  6. Step 6: Final answer
    x = 2,790.74

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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.