Home / 2,254.40-3,099.12-1,938.50

Finding the Fourth Proportional to 2,254.40, 3,099.12 and 1,938.50

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Solution

The fourth proportional to 2,254.40, 3,099.12 and 1,938.50 is: 2,664.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.40 : 3,099.12 = 1,938.50 : x
  2. Step 2: Convert to fraction form
    2,254.40/3,099.12 = 1,938.50/x
  3. Step 3: Cross multiply
    2,254.40x = 3,099.12 × 1,938.50
  4. Step 4: Simplify right side
    2,254.40x = 6,007,644.12
  5. Step 5: Solve for x
    x = 6,007,644.12/2,254.40
  6. Step 6: Final answer
    x = 2,664.85

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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.