Home / 4,278.30-6,418.30-2,087.07

Finding the Fourth Proportional to 4,278.30, 6,418.30 and 2,087.07

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Solution

The fourth proportional to 4,278.30, 6,418.30 and 2,087.07 is: 3,131.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.30 : 6,418.30 = 2,087.07 : x
  2. Step 2: Convert to fraction form
    4,278.30/6,418.30 = 2,087.07/x
  3. Step 3: Cross multiply
    4,278.30x = 6,418.30 × 2,087.07
  4. Step 4: Simplify right side
    4,278.30x = 13,395,441.38
  5. Step 5: Solve for x
    x = 13,395,441.38/4,278.30
  6. Step 6: Final answer
    x = 3,131.02

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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.