Home / 2,607.12-3,910.68-1,047.60

Finding the Fourth Proportional to 2,607.12, 3,910.68 and 1,047.60

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Solution

The fourth proportional to 2,607.12, 3,910.68 and 1,047.60 is: 1,571.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,607.12 : 3,910.68 = 1,047.60 : x
  2. Step 2: Convert to fraction form
    2,607.12/3,910.68 = 1,047.60/x
  3. Step 3: Cross multiply
    2,607.12x = 3,910.68 × 1,047.60
  4. Step 4: Simplify right side
    2,607.12x = 4,096,828.37
  5. Step 5: Solve for x
    x = 4,096,828.37/2,607.12
  6. Step 6: Final answer
    x = 1,571.40

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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.