Home / 4,439.61-6,660.74-1,319.72

Finding the Fourth Proportional to 4,439.61, 6,660.74 and 1,319.72

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Solution

The fourth proportional to 4,439.61, 6,660.74 and 1,319.72 is: 1,979.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,439.61 : 6,660.74 = 1,319.72 : x
  2. Step 2: Convert to fraction form
    4,439.61/6,660.74 = 1,319.72/x
  3. Step 3: Cross multiply
    4,439.61x = 6,660.74 × 1,319.72
  4. Step 4: Simplify right side
    4,439.61x = 8,790,311.79
  5. Step 5: Solve for x
    x = 8,790,311.79/4,439.61
  6. Step 6: Final answer
    x = 1,979.97

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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.