Home / 2,123.31-3,184.65-563.40

Finding the Fourth Proportional to 2,123.31, 3,184.65 and 563.40

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Solution

The fourth proportional to 2,123.31, 3,184.65 and 563.40 is: 845.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,123.31 : 3,184.65 = 563.40 : x
  2. Step 2: Convert to fraction form
    2,123.31/3,184.65 = 563.40/x
  3. Step 3: Cross multiply
    2,123.31x = 3,184.65 × 563.40
  4. Step 4: Simplify right side
    2,123.31x = 1,794,236.95
  5. Step 5: Solve for x
    x = 1,794,236.95/2,123.31
  6. Step 6: Final answer
    x = 845.02

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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.