Home / 5,561.68-8,343.74-1,665.78

Finding the Fourth Proportional to 5,561.68, 8,343.74 and 1,665.78

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Solution

The fourth proportional to 5,561.68, 8,343.74 and 1,665.78 is: 2,499.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,561.68 : 8,343.74 = 1,665.78 : x
  2. Step 2: Convert to fraction form
    5,561.68/8,343.74 = 1,665.78/x
  3. Step 3: Cross multiply
    5,561.68x = 8,343.74 × 1,665.78
  4. Step 4: Simplify right side
    5,561.68x = 13,898,835.22
  5. Step 5: Solve for x
    x = 13,898,835.22/5,561.68
  6. Step 6: Final answer
    x = 2,499.04

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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.