Home / 5,742.28-8,611.84-1,581.31

Finding the Fourth Proportional to 5,742.28, 8,611.84 and 1,581.31

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Solution

The fourth proportional to 5,742.28, 8,611.84 and 1,581.31 is: 2,371.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,742.28 : 8,611.84 = 1,581.31 : x
  2. Step 2: Convert to fraction form
    5,742.28/8,611.84 = 1,581.31/x
  3. Step 3: Cross multiply
    5,742.28x = 8,611.84 × 1,581.31
  4. Step 4: Simplify right side
    5,742.28x = 13,617,988.71
  5. Step 5: Solve for x
    x = 13,617,988.71/5,742.28
  6. Step 6: Final answer
    x = 2,371.53

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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.