Home / 2,868.18-4,305.51-1,138.02

Finding the Fourth Proportional to 2,868.18, 4,305.51 and 1,138.02

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Solution

The fourth proportional to 2,868.18, 4,305.51 and 1,138.02 is: 1,708.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,868.18 : 4,305.51 = 1,138.02 : x
  2. Step 2: Convert to fraction form
    2,868.18/4,305.51 = 1,138.02/x
  3. Step 3: Cross multiply
    2,868.18x = 4,305.51 × 1,138.02
  4. Step 4: Simplify right side
    2,868.18x = 4,899,756.49
  5. Step 5: Solve for x
    x = 4,899,756.49/2,868.18
  6. Step 6: Final answer
    x = 1,708.32

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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.