Home / 6,718.86-9,272.21-3,885.95

Finding the Fourth Proportional to 6,718.86, 9,272.21 and 3,885.95

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Solution

The fourth proportional to 6,718.86, 9,272.21 and 3,885.95 is: 5,362.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,718.86 : 9,272.21 = 3,885.95 : x
  2. Step 2: Convert to fraction form
    6,718.86/9,272.21 = 3,885.95/x
  3. Step 3: Cross multiply
    6,718.86x = 9,272.21 × 3,885.95
  4. Step 4: Simplify right side
    6,718.86x = 36,031,348.20
  5. Step 5: Solve for x
    x = 36,031,348.20/6,718.86
  6. Step 6: Final answer
    x = 5,362.72

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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.