Home / 6,128.64-9,189.30-2,616.84

Finding the Fourth Proportional to 6,128.64, 9,189.30 and 2,616.84

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Solution

The fourth proportional to 6,128.64, 9,189.30 and 2,616.84 is: 3,923.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.64 : 9,189.30 = 2,616.84 : x
  2. Step 2: Convert to fraction form
    6,128.64/9,189.30 = 2,616.84/x
  3. Step 3: Cross multiply
    6,128.64x = 9,189.30 × 2,616.84
  4. Step 4: Simplify right side
    6,128.64x = 24,046,927.81
  5. Step 5: Solve for x
    x = 24,046,927.81/6,128.64
  6. Step 6: Final answer
    x = 3,923.70

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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.