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Finding the Fourth Proportional to 2,748.06, 4,120.02 and 898.20

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Solution

The fourth proportional to 2,748.06, 4,120.02 and 898.20 is: 1,346.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,748.06 : 4,120.02 = 898.20 : x
  2. Step 2: Convert to fraction form
    2,748.06/4,120.02 = 898.20/x
  3. Step 3: Cross multiply
    2,748.06x = 4,120.02 × 898.20
  4. Step 4: Simplify right side
    2,748.06x = 3,700,601.96
  5. Step 5: Solve for x
    x = 3,700,601.96/2,748.06
  6. Step 6: Final answer
    x = 1,346.62

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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.