Home / 6,897.69-9,518.85-3,753.95

Finding the Fourth Proportional to 6,897.69, 9,518.85 and 3,753.95

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Solution

The fourth proportional to 6,897.69, 9,518.85 and 3,753.95 is: 5,180.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,897.69 : 9,518.85 = 3,753.95 : x
  2. Step 2: Convert to fraction form
    6,897.69/9,518.85 = 3,753.95/x
  3. Step 3: Cross multiply
    6,897.69x = 9,518.85 × 3,753.95
  4. Step 4: Simplify right side
    6,897.69x = 35,733,239.36
  5. Step 5: Solve for x
    x = 35,733,239.36/6,897.69
  6. Step 6: Final answer
    x = 5,180.46

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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.