Home / 3,848.05-5,312.73-2,789.34

Finding the Fourth Proportional to 3,848.05, 5,312.73 and 2,789.34

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Solution

The fourth proportional to 3,848.05, 5,312.73 and 2,789.34 is: 3,851.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,848.05 : 5,312.73 = 2,789.34 : x
  2. Step 2: Convert to fraction form
    3,848.05/5,312.73 = 2,789.34/x
  3. Step 3: Cross multiply
    3,848.05x = 5,312.73 × 2,789.34
  4. Step 4: Simplify right side
    3,848.05x = 14,819,010.30
  5. Step 5: Solve for x
    x = 14,819,010.30/3,848.05
  6. Step 6: Final answer
    x = 3,851.04

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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.