Home / 3,065.49-4,231.34-1,806.45

Finding the Fourth Proportional to 3,065.49, 4,231.34 and 1,806.45

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Solution

The fourth proportional to 3,065.49, 4,231.34 and 1,806.45 is: 2,493.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,065.49 : 4,231.34 = 1,806.45 : x
  2. Step 2: Convert to fraction form
    3,065.49/4,231.34 = 1,806.45/x
  3. Step 3: Cross multiply
    3,065.49x = 4,231.34 × 1,806.45
  4. Step 4: Simplify right side
    3,065.49x = 7,643,695.11
  5. Step 5: Solve for x
    x = 7,643,695.11/3,065.49
  6. Step 6: Final answer
    x = 2,493.47

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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.