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Finding the Fourth Proportional to 4,903.44, 7,350.60 and 1,981.20

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Solution

The fourth proportional to 4,903.44, 7,350.60 and 1,981.20 is: 2,969.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,903.44 : 7,350.60 = 1,981.20 : x
  2. Step 2: Convert to fraction form
    4,903.44/7,350.60 = 1,981.20/x
  3. Step 3: Cross multiply
    4,903.44x = 7,350.60 × 1,981.20
  4. Step 4: Simplify right side
    4,903.44x = 14,563,008.72
  5. Step 5: Solve for x
    x = 14,563,008.72/4,903.44
  6. Step 6: Final answer
    x = 2,969.96

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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.