Home / 5,434.32-8,150.40-2,659.80

Finding the Fourth Proportional to 5,434.32, 8,150.40 and 2,659.80

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Solution

The fourth proportional to 5,434.32, 8,150.40 and 2,659.80 is: 3,989.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,434.32 : 8,150.40 = 2,659.80 : x
  2. Step 2: Convert to fraction form
    5,434.32/8,150.40 = 2,659.80/x
  3. Step 3: Cross multiply
    5,434.32x = 8,150.40 × 2,659.80
  4. Step 4: Simplify right side
    5,434.32x = 21,678,433.92
  5. Step 5: Solve for x
    x = 21,678,433.92/5,434.32
  6. Step 6: Final answer
    x = 3,989.17

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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.