Home / 3,171.30-4,758.93-1,119.30

Finding the Fourth Proportional to 3,171.30, 4,758.93 and 1,119.30

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Solution

The fourth proportional to 3,171.30, 4,758.93 and 1,119.30 is: 1,679.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.30 : 4,758.93 = 1,119.30 : x
  2. Step 2: Convert to fraction form
    3,171.30/4,758.93 = 1,119.30/x
  3. Step 3: Cross multiply
    3,171.30x = 4,758.93 × 1,119.30
  4. Step 4: Simplify right side
    3,171.30x = 5,326,670.35
  5. Step 5: Solve for x
    x = 5,326,670.35/3,171.30
  6. Step 6: Final answer
    x = 1,679.65

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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.