Home / 2,600.32-3,900.48-1,907.68

Finding the Fourth Proportional to 2,600.32, 3,900.48 and 1,907.68

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Solution

The fourth proportional to 2,600.32, 3,900.48 and 1,907.68 is: 2,861.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,600.32 : 3,900.48 = 1,907.68 : x
  2. Step 2: Convert to fraction form
    2,600.32/3,900.48 = 1,907.68/x
  3. Step 3: Cross multiply
    2,600.32x = 3,900.48 × 1,907.68
  4. Step 4: Simplify right side
    2,600.32x = 7,440,867.69
  5. Step 5: Solve for x
    x = 7,440,867.69/2,600.32
  6. Step 6: Final answer
    x = 2,861.52

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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.