Home / 5,742.71-8,612.97-1,581.68

Finding the Fourth Proportional to 5,742.71, 8,612.97 and 1,581.68

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Solution

The fourth proportional to 5,742.71, 8,612.97 and 1,581.68 is: 2,372.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,742.71 : 8,612.97 = 1,581.68 : x
  2. Step 2: Convert to fraction form
    5,742.71/8,612.97 = 1,581.68/x
  3. Step 3: Cross multiply
    5,742.71x = 8,612.97 × 1,581.68
  4. Step 4: Simplify right side
    5,742.71x = 13,622,919.32
  5. Step 5: Solve for x
    x = 13,622,919.32/5,742.71
  6. Step 6: Final answer
    x = 2,372.21

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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.