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Finding the Fourth Proportional to 3,230.79, 4,840.74 and 1,472.91

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Solution

The fourth proportional to 3,230.79, 4,840.74 and 1,472.91 is: 2,206.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,230.79 : 4,840.74 = 1,472.91 : x
  2. Step 2: Convert to fraction form
    3,230.79/4,840.74 = 1,472.91/x
  3. Step 3: Cross multiply
    3,230.79x = 4,840.74 × 1,472.91
  4. Step 4: Simplify right side
    3,230.79x = 7,129,974.35
  5. Step 5: Solve for x
    x = 7,129,974.35/3,230.79
  6. Step 6: Final answer
    x = 2,206.88

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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.