Home / 5,638.19-8,456.87-2,518.47

Finding the Fourth Proportional to 5,638.19, 8,456.87 and 2,518.47

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Solution

The fourth proportional to 5,638.19, 8,456.87 and 2,518.47 is: 3,777.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,638.19 : 8,456.87 = 2,518.47 : x
  2. Step 2: Convert to fraction form
    5,638.19/8,456.87 = 2,518.47/x
  3. Step 3: Cross multiply
    5,638.19x = 8,456.87 × 2,518.47
  4. Step 4: Simplify right side
    5,638.19x = 21,298,379.69
  5. Step 5: Solve for x
    x = 21,298,379.69/5,638.19
  6. Step 6: Final answer
    x = 3,777.52

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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.