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Finding the Fourth Proportional to 4,994.66, 7,491.47 and 3,140.15

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Solution

The fourth proportional to 4,994.66, 7,491.47 and 3,140.15 is: 4,709.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,994.66 : 7,491.47 = 3,140.15 : x
  2. Step 2: Convert to fraction form
    4,994.66/7,491.47 = 3,140.15/x
  3. Step 3: Cross multiply
    4,994.66x = 7,491.47 × 3,140.15
  4. Step 4: Simplify right side
    4,994.66x = 23,524,346.17
  5. Step 5: Solve for x
    x = 23,524,346.17/4,994.66
  6. Step 6: Final answer
    x = 4,709.90

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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.