Home / 3,859.46-5,789.70-1,261.52

Finding the Fourth Proportional to 3,859.46, 5,789.70 and 1,261.52

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Solution

The fourth proportional to 3,859.46, 5,789.70 and 1,261.52 is: 1,892.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.46 : 5,789.70 = 1,261.52 : x
  2. Step 2: Convert to fraction form
    3,859.46/5,789.70 = 1,261.52/x
  3. Step 3: Cross multiply
    3,859.46x = 5,789.70 × 1,261.52
  4. Step 4: Simplify right side
    3,859.46x = 7,303,822.34
  5. Step 5: Solve for x
    x = 7,303,822.34/3,859.46
  6. Step 6: Final answer
    x = 1,892.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.