Home / 5,688.26-8,536.20-1,990.48

Finding the Fourth Proportional to 5,688.26, 8,536.20 and 1,990.48

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Solution

The fourth proportional to 5,688.26, 8,536.20 and 1,990.48 is: 2,987.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,688.26 : 8,536.20 = 1,990.48 : x
  2. Step 2: Convert to fraction form
    5,688.26/8,536.20 = 1,990.48/x
  3. Step 3: Cross multiply
    5,688.26x = 8,536.20 × 1,990.48
  4. Step 4: Simplify right side
    5,688.26x = 16,991,135.38
  5. Step 5: Solve for x
    x = 16,991,135.38/5,688.26
  6. Step 6: Final answer
    x = 2,987.05

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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.