Home / 5,324.45-7,986.69-1,861.70

Finding the Fourth Proportional to 5,324.45, 7,986.69 and 1,861.70

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Solution

The fourth proportional to 5,324.45, 7,986.69 and 1,861.70 is: 2,792.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,324.45 : 7,986.69 = 1,861.70 : x
  2. Step 2: Convert to fraction form
    5,324.45/7,986.69 = 1,861.70/x
  3. Step 3: Cross multiply
    5,324.45x = 7,986.69 × 1,861.70
  4. Step 4: Simplify right side
    5,324.45x = 14,868,820.77
  5. Step 5: Solve for x
    x = 14,868,820.77/5,324.45
  6. Step 6: Final answer
    x = 2,792.56

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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.