Home / 5,614.42-8,420.20-1,664.76

Finding the Fourth Proportional to 5,614.42, 8,420.20 and 1,664.76

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Solution

The fourth proportional to 5,614.42, 8,420.20 and 1,664.76 is: 2,496.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,614.42 : 8,420.20 = 1,664.76 : x
  2. Step 2: Convert to fraction form
    5,614.42/8,420.20 = 1,664.76/x
  3. Step 3: Cross multiply
    5,614.42x = 8,420.20 × 1,664.76
  4. Step 4: Simplify right side
    5,614.42x = 14,017,561.73
  5. Step 5: Solve for x
    x = 14,017,561.73/5,614.42
  6. Step 6: Final answer
    x = 2,496.71

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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.