Home / 2,875.14-4,311.34-1,230.79

Finding the Fourth Proportional to 2,875.14, 4,311.34 and 1,230.79

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Solution

The fourth proportional to 2,875.14, 4,311.34 and 1,230.79 is: 1,845.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.14 : 4,311.34 = 1,230.79 : x
  2. Step 2: Convert to fraction form
    2,875.14/4,311.34 = 1,230.79/x
  3. Step 3: Cross multiply
    2,875.14x = 4,311.34 × 1,230.79
  4. Step 4: Simplify right side
    2,875.14x = 5,306,340.30
  5. Step 5: Solve for x
    x = 5,306,340.30/2,875.14
  6. Step 6: Final answer
    x = 1,845.59

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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.