Home / 5,638.26-8,457.29-1,742.57

Finding the Fourth Proportional to 5,638.26, 8,457.29 and 1,742.57

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Solution

The fourth proportional to 5,638.26, 8,457.29 and 1,742.57 is: 2,613.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,638.26 : 8,457.29 = 1,742.57 : x
  2. Step 2: Convert to fraction form
    5,638.26/8,457.29 = 1,742.57/x
  3. Step 3: Cross multiply
    5,638.26x = 8,457.29 × 1,742.57
  4. Step 4: Simplify right side
    5,638.26x = 14,737,419.84
  5. Step 5: Solve for x
    x = 14,737,419.84/5,638.26
  6. Step 6: Final answer
    x = 2,613.82

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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.