Home / 7,164.72-10,740.67-2,781.14

Finding the Fourth Proportional to 7,164.72, 10,740.67 and 2,781.14

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Solution

The fourth proportional to 7,164.72, 10,740.67 and 2,781.14 is: 4,169.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,164.72 : 10,740.67 = 2,781.14 : x
  2. Step 2: Convert to fraction form
    7,164.72/10,740.67 = 2,781.14/x
  3. Step 3: Cross multiply
    7,164.72x = 10,740.67 × 2,781.14
  4. Step 4: Simplify right side
    7,164.72x = 29,871,246.31
  5. Step 5: Solve for x
    x = 29,871,246.31/7,164.72
  6. Step 6: Final answer
    x = 4,169.21

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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.