Home / 3,607.29-4,978.08-2,115.23

Finding the Fourth Proportional to 3,607.29, 4,978.08 and 2,115.23

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Solution

The fourth proportional to 3,607.29, 4,978.08 and 2,115.23 is: 2,919.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,607.29 : 4,978.08 = 2,115.23 : x
  2. Step 2: Convert to fraction form
    3,607.29/4,978.08 = 2,115.23/x
  3. Step 3: Cross multiply
    3,607.29x = 4,978.08 × 2,115.23
  4. Step 4: Simplify right side
    3,607.29x = 10,529,787.27
  5. Step 5: Solve for x
    x = 10,529,787.27/3,607.29
  6. Step 6: Final answer
    x = 2,919.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.