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Finding the Fourth Proportional to 2,949.80, 4,424.64 and 897.80

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Solution

The fourth proportional to 2,949.80, 4,424.64 and 897.80 is: 1,346.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949.80 : 4,424.64 = 897.80 : x
  2. Step 2: Convert to fraction form
    2,949.80/4,424.64 = 897.80/x
  3. Step 3: Cross multiply
    2,949.80x = 4,424.64 × 897.80
  4. Step 4: Simplify right side
    2,949.80x = 3,972,441.79
  5. Step 5: Solve for x
    x = 3,972,441.79/2,949.80
  6. Step 6: Final answer
    x = 1,346.68

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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.