Home / 3,900.04-5,850.93-1,126.72

Finding the Fourth Proportional to 3,900.04, 5,850.93 and 1,126.72

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Solution

The fourth proportional to 3,900.04, 5,850.93 and 1,126.72 is: 1,690.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900.04 : 5,850.93 = 1,126.72 : x
  2. Step 2: Convert to fraction form
    3,900.04/5,850.93 = 1,126.72/x
  3. Step 3: Cross multiply
    3,900.04x = 5,850.93 × 1,126.72
  4. Step 4: Simplify right side
    3,900.04x = 6,592,359.85
  5. Step 5: Solve for x
    x = 6,592,359.85/3,900.04
  6. Step 6: Final answer
    x = 1,690.33

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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.