Home / 2,142.36-2,937.15-2,103.48

Finding the Fourth Proportional to 2,142.36, 2,937.15 and 2,103.48

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Solution

The fourth proportional to 2,142.36, 2,937.15 and 2,103.48 is: 2,883.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142.36 : 2,937.15 = 2,103.48 : x
  2. Step 2: Convert to fraction form
    2,142.36/2,937.15 = 2,103.48/x
  3. Step 3: Cross multiply
    2,142.36x = 2,937.15 × 2,103.48
  4. Step 4: Simplify right side
    2,142.36x = 6,178,236.28
  5. Step 5: Solve for x
    x = 6,178,236.28/2,142.36
  6. Step 6: Final answer
    x = 2,883.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.