Home / 5,426.35-8,139.53-1,962.79

Finding the Fourth Proportional to 5,426.35, 8,139.53 and 1,962.79

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Solution

The fourth proportional to 5,426.35, 8,139.53 and 1,962.79 is: 2,944.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.35 : 8,139.53 = 1,962.79 : x
  2. Step 2: Convert to fraction form
    5,426.35/8,139.53 = 1,962.79/x
  3. Step 3: Cross multiply
    5,426.35x = 8,139.53 × 1,962.79
  4. Step 4: Simplify right side
    5,426.35x = 15,976,188.09
  5. Step 5: Solve for x
    x = 15,976,188.09/5,426.35
  6. Step 6: Final answer
    x = 2,944.19

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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.