Home / 2,321.10-3,203.06-1,533.78

Finding the Fourth Proportional to 2,321.10, 3,203.06 and 1,533.78

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Solution

The fourth proportional to 2,321.10, 3,203.06 and 1,533.78 is: 2,116.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,321.10 : 3,203.06 = 1,533.78 : x
  2. Step 2: Convert to fraction form
    2,321.10/3,203.06 = 1,533.78/x
  3. Step 3: Cross multiply
    2,321.10x = 3,203.06 × 1,533.78
  4. Step 4: Simplify right side
    2,321.10x = 4,912,781.70
  5. Step 5: Solve for x
    x = 4,912,781.70/2,321.10
  6. Step 6: Final answer
    x = 2,116.57

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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.