Home / 3,318.57-4,977.81-1,370.79

Finding the Fourth Proportional to 3,318.57, 4,977.81 and 1,370.79

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Solution

The fourth proportional to 3,318.57, 4,977.81 and 1,370.79 is: 2,056.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.57 : 4,977.81 = 1,370.79 : x
  2. Step 2: Convert to fraction form
    3,318.57/4,977.81 = 1,370.79/x
  3. Step 3: Cross multiply
    3,318.57x = 4,977.81 × 1,370.79
  4. Step 4: Simplify right side
    3,318.57x = 6,823,532.17
  5. Step 5: Solve for x
    x = 6,823,532.17/3,318.57
  6. Step 6: Final answer
    x = 2,056.17

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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.