Home / 2,479.65-3,423.41-1,536.70

Finding the Fourth Proportional to 2,479.65, 3,423.41 and 1,536.70

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Solution

The fourth proportional to 2,479.65, 3,423.41 and 1,536.70 is: 2,121.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.65 : 3,423.41 = 1,536.70 : x
  2. Step 2: Convert to fraction form
    2,479.65/3,423.41 = 1,536.70/x
  3. Step 3: Cross multiply
    2,479.65x = 3,423.41 × 1,536.70
  4. Step 4: Simplify right side
    2,479.65x = 5,260,754.15
  5. Step 5: Solve for x
    x = 5,260,754.15/2,479.65
  6. Step 6: Final answer
    x = 2,121.57

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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.