Home / 6,897.75-9,518.90-3,753.96

Finding the Fourth Proportional to 6,897.75, 9,518.90 and 3,753.96

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Solution

The fourth proportional to 6,897.75, 9,518.90 and 3,753.96 is: 5,180.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,897.75 : 9,518.90 = 3,753.96 : x
  2. Step 2: Convert to fraction form
    6,897.75/9,518.90 = 3,753.96/x
  3. Step 3: Cross multiply
    6,897.75x = 9,518.90 × 3,753.96
  4. Step 4: Simplify right side
    6,897.75x = 35,733,569.84
  5. Step 5: Solve for x
    x = 35,733,569.84/6,897.75
  6. Step 6: Final answer
    x = 5,180.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.