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Finding the Fourth Proportional to 3,263.68, 4,900.38 and 1,319.68

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Solution

The fourth proportional to 3,263.68, 4,900.38 and 1,319.68 is: 1,981.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,263.68 : 4,900.38 = 1,319.68 : x
  2. Step 2: Convert to fraction form
    3,263.68/4,900.38 = 1,319.68/x
  3. Step 3: Cross multiply
    3,263.68x = 4,900.38 × 1,319.68
  4. Step 4: Simplify right side
    3,263.68x = 6,466,933.48
  5. Step 5: Solve for x
    x = 6,466,933.48/3,263.68
  6. Step 6: Final answer
    x = 1,981.49

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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.