Home / 2,520.42-3,479.91-1,576.62

Finding the Fourth Proportional to 2,520.42, 3,479.91 and 1,576.62

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Solution

The fourth proportional to 2,520.42, 3,479.91 and 1,576.62 is: 2,176.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,520.42 : 3,479.91 = 1,576.62 : x
  2. Step 2: Convert to fraction form
    2,520.42/3,479.91 = 1,576.62/x
  3. Step 3: Cross multiply
    2,520.42x = 3,479.91 × 1,576.62
  4. Step 4: Simplify right side
    2,520.42x = 5,486,495.70
  5. Step 5: Solve for x
    x = 5,486,495.70/2,520.42
  6. Step 6: Final answer
    x = 2,176.82

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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.