Home / 6,921.24-10,381.86-1,727.12

Finding the Fourth Proportional to 6,921.24, 10,381.86 and 1,727.12

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Solution

The fourth proportional to 6,921.24, 10,381.86 and 1,727.12 is: 2,590.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.24 : 10,381.86 = 1,727.12 : x
  2. Step 2: Convert to fraction form
    6,921.24/10,381.86 = 1,727.12/x
  3. Step 3: Cross multiply
    6,921.24x = 10,381.86 × 1,727.12
  4. Step 4: Simplify right side
    6,921.24x = 17,930,666.13
  5. Step 5: Solve for x
    x = 17,930,666.13/6,921.24
  6. Step 6: Final answer
    x = 2,590.67

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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.