Home / 3,850.98-5,312.45-2,415.09

Finding the Fourth Proportional to 3,850.98, 5,312.45 and 2,415.09

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Solution

The fourth proportional to 3,850.98, 5,312.45 and 2,415.09 is: 3,331.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,850.98 : 5,312.45 = 2,415.09 : x
  2. Step 2: Convert to fraction form
    3,850.98/5,312.45 = 2,415.09/x
  3. Step 3: Cross multiply
    3,850.98x = 5,312.45 × 2,415.09
  4. Step 4: Simplify right side
    3,850.98x = 12,830,032.80
  5. Step 5: Solve for x
    x = 12,830,032.80/3,850.98
  6. Step 6: Final answer
    x = 3,331.63

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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.