Home / 3,426.10-5,134.89-1,781.68

Finding the Fourth Proportional to 3,426.10, 5,134.89 and 1,781.68

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Solution

The fourth proportional to 3,426.10, 5,134.89 and 1,781.68 is: 2,670.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.10 : 5,134.89 = 1,781.68 : x
  2. Step 2: Convert to fraction form
    3,426.10/5,134.89 = 1,781.68/x
  3. Step 3: Cross multiply
    3,426.10x = 5,134.89 × 1,781.68
  4. Step 4: Simplify right side
    3,426.10x = 9,148,730.82
  5. Step 5: Solve for x
    x = 9,148,730.82/3,426.10
  6. Step 6: Final answer
    x = 2,670.30

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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.