Home / 4,916.78-7,374.10-1,629.10

Finding the Fourth Proportional to 4,916.78, 7,374.10 and 1,629.10

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Solution

The fourth proportional to 4,916.78, 7,374.10 and 1,629.10 is: 2,443.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,916.78 : 7,374.10 = 1,629.10 : x
  2. Step 2: Convert to fraction form
    4,916.78/7,374.10 = 1,629.10/x
  3. Step 3: Cross multiply
    4,916.78x = 7,374.10 × 1,629.10
  4. Step 4: Simplify right side
    4,916.78x = 12,013,146.31
  5. Step 5: Solve for x
    x = 12,013,146.31/4,916.78
  6. Step 6: Final answer
    x = 2,443.30

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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.