Home / 5,706.90-8,561.70-1,811.34

Finding the Fourth Proportional to 5,706.90, 8,561.70 and 1,811.34

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Solution

The fourth proportional to 5,706.90, 8,561.70 and 1,811.34 is: 2,717.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,706.90 : 8,561.70 = 1,811.34 : x
  2. Step 2: Convert to fraction form
    5,706.90/8,561.70 = 1,811.34/x
  3. Step 3: Cross multiply
    5,706.90x = 8,561.70 × 1,811.34
  4. Step 4: Simplify right side
    5,706.90x = 15,508,149.68
  5. Step 5: Solve for x
    x = 15,508,149.68/5,706.90
  6. Step 6: Final answer
    x = 2,717.44

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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.