Home / 3,848.19-5,310.48-2,079.80

Finding the Fourth Proportional to 3,848.19, 5,310.48 and 2,079.80

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Solution

The fourth proportional to 3,848.19, 5,310.48 and 2,079.80 is: 2,870.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,848.19 : 5,310.48 = 2,079.80 : x
  2. Step 2: Convert to fraction form
    3,848.19/5,310.48 = 2,079.80/x
  3. Step 3: Cross multiply
    3,848.19x = 5,310.48 × 2,079.80
  4. Step 4: Simplify right side
    3,848.19x = 11,044,709.75
  5. Step 5: Solve for x
    x = 11,044,709.75/3,848.19
  6. Step 6: Final answer
    x = 2,870.11

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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.