Home / 2,600.29-3,900.69-845.22

Finding the Fourth Proportional to 2,600.29, 3,900.69 and 845.22

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Solution

The fourth proportional to 2,600.29, 3,900.69 and 845.22 is: 1,267.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,600.29 : 3,900.69 = 845.22 : x
  2. Step 2: Convert to fraction form
    2,600.29/3,900.69 = 845.22/x
  3. Step 3: Cross multiply
    2,600.29x = 3,900.69 × 845.22
  4. Step 4: Simplify right side
    2,600.29x = 3,296,941.20
  5. Step 5: Solve for x
    x = 3,296,941.20/2,600.29
  6. Step 6: Final answer
    x = 1,267.91

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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.