Home / 3,943.59-5,915.39-2,479.11

Finding the Fourth Proportional to 3,943.59, 5,915.39 and 2,479.11

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Solution

The fourth proportional to 3,943.59, 5,915.39 and 2,479.11 is: 3,718.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.59 : 5,915.39 = 2,479.11 : x
  2. Step 2: Convert to fraction form
    3,943.59/5,915.39 = 2,479.11/x
  3. Step 3: Cross multiply
    3,943.59x = 5,915.39 × 2,479.11
  4. Step 4: Simplify right side
    3,943.59x = 14,664,890.11
  5. Step 5: Solve for x
    x = 14,664,890.11/3,943.59
  6. Step 6: Final answer
    x = 3,718.67

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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.