Home / 3,916.46-5,404.64-2,148.02

Finding the Fourth Proportional to 3,916.46, 5,404.64 and 2,148.02

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Solution

The fourth proportional to 3,916.46, 5,404.64 and 2,148.02 is: 2,964.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.46 : 5,404.64 = 2,148.02 : x
  2. Step 2: Convert to fraction form
    3,916.46/5,404.64 = 2,148.02/x
  3. Step 3: Cross multiply
    3,916.46x = 5,404.64 × 2,148.02
  4. Step 4: Simplify right side
    3,916.46x = 11,609,274.81
  5. Step 5: Solve for x
    x = 11,609,274.81/3,916.46
  6. Step 6: Final answer
    x = 2,964.23

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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.