Home / 4,447.20-6,665.12-2,107.20

Finding the Fourth Proportional to 4,447.20, 6,665.12 and 2,107.20

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Solution

The fourth proportional to 4,447.20, 6,665.12 and 2,107.20 is: 3,158.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,447.20 : 6,665.12 = 2,107.20 : x
  2. Step 2: Convert to fraction form
    4,447.20/6,665.12 = 2,107.20/x
  3. Step 3: Cross multiply
    4,447.20x = 6,665.12 × 2,107.20
  4. Step 4: Simplify right side
    4,447.20x = 14,044,740.86
  5. Step 5: Solve for x
    x = 14,044,740.86/4,447.20
  6. Step 6: Final answer
    x = 3,158.11

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1.5x scale

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.