Home / 2,321.03-3,202.46-1,312.76

Finding the Fourth Proportional to 2,321.03, 3,202.46 and 1,312.76

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Solution

The fourth proportional to 2,321.03, 3,202.46 and 1,312.76 is: 1,811.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,321.03 : 3,202.46 = 1,312.76 : x
  2. Step 2: Convert to fraction form
    2,321.03/3,202.46 = 1,312.76/x
  3. Step 3: Cross multiply
    2,321.03x = 3,202.46 × 1,312.76
  4. Step 4: Simplify right side
    2,321.03x = 4,204,057.13
  5. Step 5: Solve for x
    x = 4,204,057.13/2,321.03
  6. Step 6: Final answer
    x = 1,811.29

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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.