Home / 5,417.72-8,125.86-2,129.93

Finding the Fourth Proportional to 5,417.72, 8,125.86 and 2,129.93

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Solution

The fourth proportional to 5,417.72, 8,125.86 and 2,129.93 is: 3,194.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.72 : 8,125.86 = 2,129.93 : x
  2. Step 2: Convert to fraction form
    5,417.72/8,125.86 = 2,129.93/x
  3. Step 3: Cross multiply
    5,417.72x = 8,125.86 × 2,129.93
  4. Step 4: Simplify right side
    5,417.72x = 17,307,512.99
  5. Step 5: Solve for x
    x = 17,307,512.99/5,417.72
  6. Step 6: Final answer
    x = 3,194.61

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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.