Home / 3,321.40-4,981.70-1,935.52

Finding the Fourth Proportional to 3,321.40, 4,981.70 and 1,935.52

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Solution

The fourth proportional to 3,321.40, 4,981.70 and 1,935.52 is: 2,903.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.40 : 4,981.70 = 1,935.52 : x
  2. Step 2: Convert to fraction form
    3,321.40/4,981.70 = 1,935.52/x
  3. Step 3: Cross multiply
    3,321.40x = 4,981.70 × 1,935.52
  4. Step 4: Simplify right side
    3,321.40x = 9,642,179.98
  5. Step 5: Solve for x
    x = 9,642,179.98/3,321.40
  6. Step 6: Final answer
    x = 2,903.05

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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.