Home / 2,073.10-3,110.30-840.82

Finding the Fourth Proportional to 2,073.10, 3,110.30 and 840.82

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Solution

The fourth proportional to 2,073.10, 3,110.30 and 840.82 is: 1,261.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,073.10 : 3,110.30 = 840.82 : x
  2. Step 2: Convert to fraction form
    2,073.10/3,110.30 = 840.82/x
  3. Step 3: Cross multiply
    2,073.10x = 3,110.30 × 840.82
  4. Step 4: Simplify right side
    2,073.10x = 2,615,202.45
  5. Step 5: Solve for x
    x = 2,615,202.45/2,073.10
  6. Step 6: Final answer
    x = 1,261.49

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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.