Home / 4,087.11-5,640.36-2,318.79

Finding the Fourth Proportional to 4,087.11, 5,640.36 and 2,318.79

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Solution

The fourth proportional to 4,087.11, 5,640.36 and 2,318.79 is: 3,200.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.11 : 5,640.36 = 2,318.79 : x
  2. Step 2: Convert to fraction form
    4,087.11/5,640.36 = 2,318.79/x
  3. Step 3: Cross multiply
    4,087.11x = 5,640.36 × 2,318.79
  4. Step 4: Simplify right side
    4,087.11x = 13,078,810.36
  5. Step 5: Solve for x
    x = 13,078,810.36/4,087.11
  6. Step 6: Final answer
    x = 3,200.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.