Home / 3,434.85-4,739.78-1,942.90

Finding the Fourth Proportional to 3,434.85, 4,739.78 and 1,942.90

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Solution

The fourth proportional to 3,434.85, 4,739.78 and 1,942.90 is: 2,681.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,434.85 : 4,739.78 = 1,942.90 : x
  2. Step 2: Convert to fraction form
    3,434.85/4,739.78 = 1,942.90/x
  3. Step 3: Cross multiply
    3,434.85x = 4,739.78 × 1,942.90
  4. Step 4: Simplify right side
    3,434.85x = 9,208,911.57
  5. Step 5: Solve for x
    x = 9,208,911.57/3,434.85
  6. Step 6: Final answer
    x = 2,681.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.