Home / 5,451.77-8,178.57-2,164.93

Finding the Fourth Proportional to 5,451.77, 8,178.57 and 2,164.93

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Solution

The fourth proportional to 5,451.77, 8,178.57 and 2,164.93 is: 3,247.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451.77 : 8,178.57 = 2,164.93 : x
  2. Step 2: Convert to fraction form
    5,451.77/8,178.57 = 2,164.93/x
  3. Step 3: Cross multiply
    5,451.77x = 8,178.57 × 2,164.93
  4. Step 4: Simplify right side
    5,451.77x = 17,706,011.10
  5. Step 5: Solve for x
    x = 17,706,011.10/5,451.77
  6. Step 6: Final answer
    x = 3,247.75

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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.