Home / 2,439.34-3,366.30-1,431.65

Finding the Fourth Proportional to 2,439.34, 3,366.30 and 1,431.65

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Solution

The fourth proportional to 2,439.34, 3,366.30 and 1,431.65 is: 1,975.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.34 : 3,366.30 = 1,431.65 : x
  2. Step 2: Convert to fraction form
    2,439.34/3,366.30 = 1,431.65/x
  3. Step 3: Cross multiply
    2,439.34x = 3,366.30 × 1,431.65
  4. Step 4: Simplify right side
    2,439.34x = 4,819,346.56
  5. Step 5: Solve for x
    x = 4,819,346.56/2,439.34
  6. Step 6: Final answer
    x = 1,975.68

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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.