Home / 3,426.90-5,140.48-961.93

Finding the Fourth Proportional to 3,426.90, 5,140.48 and 961.93

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Solution

The fourth proportional to 3,426.90, 5,140.48 and 961.93 is: 1,442.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.90 : 5,140.48 = 961.93 : x
  2. Step 2: Convert to fraction form
    3,426.90/5,140.48 = 961.93/x
  3. Step 3: Cross multiply
    3,426.90x = 5,140.48 × 961.93
  4. Step 4: Simplify right side
    3,426.90x = 4,944,781.93
  5. Step 5: Solve for x
    x = 4,944,781.93/3,426.90
  6. Step 6: Final answer
    x = 1,442.93

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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.