Home / 2,685.56-4,025.10-1,222.70

Finding the Fourth Proportional to 2,685.56, 4,025.10 and 1,222.70

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Solution

The fourth proportional to 2,685.56, 4,025.10 and 1,222.70 is: 1,832.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.56 : 4,025.10 = 1,222.70 : x
  2. Step 2: Convert to fraction form
    2,685.56/4,025.10 = 1,222.70/x
  3. Step 3: Cross multiply
    2,685.56x = 4,025.10 × 1,222.70
  4. Step 4: Simplify right side
    2,685.56x = 4,921,489.77
  5. Step 5: Solve for x
    x = 4,921,489.77/2,685.56
  6. Step 6: Final answer
    x = 1,832.57

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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.