Home / 5,372.60-8,056.80-1,861.65

Finding the Fourth Proportional to 5,372.60, 8,056.80 and 1,861.65

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Solution

The fourth proportional to 5,372.60, 8,056.80 and 1,861.65 is: 2,791.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,372.60 : 8,056.80 = 1,861.65 : x
  2. Step 2: Convert to fraction form
    5,372.60/8,056.80 = 1,861.65/x
  3. Step 3: Cross multiply
    5,372.60x = 8,056.80 × 1,861.65
  4. Step 4: Simplify right side
    5,372.60x = 14,998,941.72
  5. Step 5: Solve for x
    x = 14,998,941.72/5,372.60
  6. Step 6: Final answer
    x = 2,791.75

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1.5x scale

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.