Home / 3,415.12-4,713.10-1,902.79

Finding the Fourth Proportional to 3,415.12, 4,713.10 and 1,902.79

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Solution

The fourth proportional to 3,415.12, 4,713.10 and 1,902.79 is: 2,625.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.12 : 4,713.10 = 1,902.79 : x
  2. Step 2: Convert to fraction form
    3,415.12/4,713.10 = 1,902.79/x
  3. Step 3: Cross multiply
    3,415.12x = 4,713.10 × 1,902.79
  4. Step 4: Simplify right side
    3,415.12x = 8,968,040.68
  5. Step 5: Solve for x
    x = 8,968,040.68/3,415.12
  6. Step 6: Final answer
    x = 2,625.98

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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.