Home / 2,622.56-3,934.96-1,307.60

Finding the Fourth Proportional to 2,622.56, 3,934.96 and 1,307.60

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Solution

The fourth proportional to 2,622.56, 3,934.96 and 1,307.60 is: 1,961.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,622.56 : 3,934.96 = 1,307.60 : x
  2. Step 2: Convert to fraction form
    2,622.56/3,934.96 = 1,307.60/x
  3. Step 3: Cross multiply
    2,622.56x = 3,934.96 × 1,307.60
  4. Step 4: Simplify right side
    2,622.56x = 5,145,353.70
  5. Step 5: Solve for x
    x = 5,145,353.70/2,622.56
  6. Step 6: Final answer
    x = 1,961.96

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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.