Home / 3,955.21-5,456.75-3,047.00

Finding the Fourth Proportional to 3,955.21, 5,456.75 and 3,047.00

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Solution

The fourth proportional to 3,955.21, 5,456.75 and 3,047.00 is: 4,203.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.21 : 5,456.75 = 3,047.00 : x
  2. Step 2: Convert to fraction form
    3,955.21/5,456.75 = 3,047.00/x
  3. Step 3: Cross multiply
    3,955.21x = 5,456.75 × 3,047.00
  4. Step 4: Simplify right side
    3,955.21x = 16,626,674.73
  5. Step 5: Solve for x
    x = 16,626,674.73/3,955.21
  6. Step 6: Final answer
    x = 4,203.74

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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.