Home / 5,119.08-7,681.32-2,196.60

Finding the Fourth Proportional to 5,119.08, 7,681.32 and 2,196.60

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Solution

The fourth proportional to 5,119.08, 7,681.32 and 2,196.60 is: 3,296.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,119.08 : 7,681.32 = 2,196.60 : x
  2. Step 2: Convert to fraction form
    5,119.08/7,681.32 = 2,196.60/x
  3. Step 3: Cross multiply
    5,119.08x = 7,681.32 × 2,196.60
  4. Step 4: Simplify right side
    5,119.08x = 16,872,787.51
  5. Step 5: Solve for x
    x = 16,872,787.51/5,119.08
  6. Step 6: Final answer
    x = 3,296.06

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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.