Home / 4,115.28-6,167.16-1,918.80

Finding the Fourth Proportional to 4,115.28, 6,167.16 and 1,918.80

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Solution

The fourth proportional to 4,115.28, 6,167.16 and 1,918.80 is: 2,875.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,115.28 : 6,167.16 = 1,918.80 : x
  2. Step 2: Convert to fraction form
    4,115.28/6,167.16 = 1,918.80/x
  3. Step 3: Cross multiply
    4,115.28x = 6,167.16 × 1,918.80
  4. Step 4: Simplify right side
    4,115.28x = 11,833,546.61
  5. Step 5: Solve for x
    x = 11,833,546.61/4,115.28
  6. Step 6: Final answer
    x = 2,875.51

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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.