Home / 4,877.82-7,320.90-1,958.22

Finding the Fourth Proportional to 4,877.82, 7,320.90 and 1,958.22

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Solution

The fourth proportional to 4,877.82, 7,320.90 and 1,958.22 is: 2,939.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877.82 : 7,320.90 = 1,958.22 : x
  2. Step 2: Convert to fraction form
    4,877.82/7,320.90 = 1,958.22/x
  3. Step 3: Cross multiply
    4,877.82x = 7,320.90 × 1,958.22
  4. Step 4: Simplify right side
    4,877.82x = 14,335,932.80
  5. Step 5: Solve for x
    x = 14,335,932.80/4,877.82
  6. Step 6: Final answer
    x = 2,939.00

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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.