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Finding the Fourth Proportional to 4,762.11, 7,143.17 and 2,165.79

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Solution

The fourth proportional to 4,762.11, 7,143.17 and 2,165.79 is: 3,248.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,762.11 : 7,143.17 = 2,165.79 : x
  2. Step 2: Convert to fraction form
    4,762.11/7,143.17 = 2,165.79/x
  3. Step 3: Cross multiply
    4,762.11x = 7,143.17 × 2,165.79
  4. Step 4: Simplify right side
    4,762.11x = 15,470,595.33
  5. Step 5: Solve for x
    x = 15,470,595.33/4,762.11
  6. Step 6: Final answer
    x = 3,248.69

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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.