Home / 6,921.43-10,381.53-1,727.30

Finding the Fourth Proportional to 6,921.43, 10,381.53 and 1,727.30

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Solution

The fourth proportional to 6,921.43, 10,381.53 and 1,727.30 is: 2,590.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.43 : 10,381.53 = 1,727.30 : x
  2. Step 2: Convert to fraction form
    6,921.43/10,381.53 = 1,727.30/x
  3. Step 3: Cross multiply
    6,921.43x = 10,381.53 × 1,727.30
  4. Step 4: Simplify right side
    6,921.43x = 17,932,016.77
  5. Step 5: Solve for x
    x = 17,932,016.77/6,921.43
  6. Step 6: Final answer
    x = 2,590.80

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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.