Home / 2,775.85-4,163.40-926.93

Finding the Fourth Proportional to 2,775.85, 4,163.40 and 926.93

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Solution

The fourth proportional to 2,775.85, 4,163.40 and 926.93 is: 1,390.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.85 : 4,163.40 = 926.93 : x
  2. Step 2: Convert to fraction form
    2,775.85/4,163.40 = 926.93/x
  3. Step 3: Cross multiply
    2,775.85x = 4,163.40 × 926.93
  4. Step 4: Simplify right side
    2,775.85x = 3,859,154.91
  5. Step 5: Solve for x
    x = 3,859,154.91/2,775.85
  6. Step 6: Final answer
    x = 1,390.26

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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.