Home / 3,482.15-5,218.47-1,919.80

Finding the Fourth Proportional to 3,482.15, 5,218.47 and 1,919.80

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Solution

The fourth proportional to 3,482.15, 5,218.47 and 1,919.80 is: 2,877.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,482.15 : 5,218.47 = 1,919.80 : x
  2. Step 2: Convert to fraction form
    3,482.15/5,218.47 = 1,919.80/x
  3. Step 3: Cross multiply
    3,482.15x = 5,218.47 × 1,919.80
  4. Step 4: Simplify right side
    3,482.15x = 10,018,425.23
  5. Step 5: Solve for x
    x = 10,018,425.23/3,482.15
  6. Step 6: Final answer
    x = 2,877.08

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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.