Home / 2,479.55-3,423.87-1,811.15

Finding the Fourth Proportional to 2,479.55, 3,423.87 and 1,811.15

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Solution

The fourth proportional to 2,479.55, 3,423.87 and 1,811.15 is: 2,500.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.55 : 3,423.87 = 1,811.15 : x
  2. Step 2: Convert to fraction form
    2,479.55/3,423.87 = 1,811.15/x
  3. Step 3: Cross multiply
    2,479.55x = 3,423.87 × 1,811.15
  4. Step 4: Simplify right side
    2,479.55x = 6,201,133.06
  5. Step 5: Solve for x
    x = 6,201,133.06/2,479.55
  6. Step 6: Final answer
    x = 2,500.91

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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.