Home / 3,848.83-5,312.15-2,255.65

Finding the Fourth Proportional to 3,848.83, 5,312.15 and 2,255.65

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Solution

The fourth proportional to 3,848.83, 5,312.15 and 2,255.65 is: 3,113.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,848.83 : 5,312.15 = 2,255.65 : x
  2. Step 2: Convert to fraction form
    3,848.83/5,312.15 = 2,255.65/x
  3. Step 3: Cross multiply
    3,848.83x = 5,312.15 × 2,255.65
  4. Step 4: Simplify right side
    3,848.83x = 11,982,351.15
  5. Step 5: Solve for x
    x = 11,982,351.15/3,848.83
  6. Step 6: Final answer
    x = 3,113.25

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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.