Home / 3,970.17-5,479.11-2,201.94

Finding the Fourth Proportional to 3,970.17, 5,479.11 and 2,201.94

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Solution

The fourth proportional to 3,970.17, 5,479.11 and 2,201.94 is: 3,038.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.17 : 5,479.11 = 2,201.94 : x
  2. Step 2: Convert to fraction form
    3,970.17/5,479.11 = 2,201.94/x
  3. Step 3: Cross multiply
    3,970.17x = 5,479.11 × 2,201.94
  4. Step 4: Simplify right side
    3,970.17x = 12,064,671.47
  5. Step 5: Solve for x
    x = 12,064,671.47/3,970.17
  6. Step 6: Final answer
    x = 3,038.83

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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.