Home / 5,611.28-8,416.26-1,715.72

Finding the Fourth Proportional to 5,611.28, 8,416.26 and 1,715.72

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Solution

The fourth proportional to 5,611.28, 8,416.26 and 1,715.72 is: 2,573.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.28 : 8,416.26 = 1,715.72 : x
  2. Step 2: Convert to fraction form
    5,611.28/8,416.26 = 1,715.72/x
  3. Step 3: Cross multiply
    5,611.28x = 8,416.26 × 1,715.72
  4. Step 4: Simplify right side
    5,611.28x = 14,439,945.61
  5. Step 5: Solve for x
    x = 14,439,945.61/5,611.28
  6. Step 6: Final answer
    x = 2,573.38

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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.