Home / 3,158.79-4,359.36-1,742.73

Finding the Fourth Proportional to 3,158.79, 4,359.36 and 1,742.73

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Solution

The fourth proportional to 3,158.79, 4,359.36 and 1,742.73 is: 2,405.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158.79 : 4,359.36 = 1,742.73 : x
  2. Step 2: Convert to fraction form
    3,158.79/4,359.36 = 1,742.73/x
  3. Step 3: Cross multiply
    3,158.79x = 4,359.36 × 1,742.73
  4. Step 4: Simplify right side
    3,158.79x = 7,597,187.45
  5. Step 5: Solve for x
    x = 7,597,187.45/3,158.79
  6. Step 6: Final answer
    x = 2,405.09

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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.