Home / 3,782,815.64-5,222,211.92-2,921,442.20

Finding the Fourth Proportional to 3,782,815.64, 5,222,211.92 and 2,921,442.20

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Solution

The fourth proportional to 3,782,815.64, 5,222,211.92 and 2,921,442.20 is: 4,033,077.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782,815.64 : 5,222,211.92 = 2,921,442.20 : x
  2. Step 2: Convert to fraction form
    3,782,815.64/5,222,211.92 = 2,921,442.20/x
  3. Step 3: Cross multiply
    3,782,815.64x = 5,222,211.92 × 2,921,442.20
  4. Step 4: Simplify right side
    3,782,815.64x = 15,256,390,280,431.03
  5. Step 5: Solve for x
    x = 15,256,390,280,431.03/3,782,815.64
  6. Step 6: Final answer
    x = 4,033,077.93

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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.