Home / 5,581.45-8,371.96-1,685.75

Finding the Fourth Proportional to 5,581.45, 8,371.96 and 1,685.75

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Solution

The fourth proportional to 5,581.45, 8,371.96 and 1,685.75 is: 2,528.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,581.45 : 8,371.96 = 1,685.75 : x
  2. Step 2: Convert to fraction form
    5,581.45/8,371.96 = 1,685.75/x
  3. Step 3: Cross multiply
    5,581.45x = 8,371.96 × 1,685.75
  4. Step 4: Simplify right side
    5,581.45x = 14,113,031.57
  5. Step 5: Solve for x
    x = 14,113,031.57/5,581.45
  6. Step 6: Final answer
    x = 2,528.56

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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.