Home / 3,105,431.61-4,289,082.47-2,071,142.36

Finding the Fourth Proportional to 3,105,431.61, 4,289,082.47 and 2,071,142.36

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Solution

The fourth proportional to 3,105,431.61, 4,289,082.47 and 2,071,142.36 is: 2,860,568.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105,431.61 : 4,289,082.47 = 2,071,142.36 : x
  2. Step 2: Convert to fraction form
    3,105,431.61/4,289,082.47 = 2,071,142.36/x
  3. Step 3: Cross multiply
    3,105,431.61x = 4,289,082.47 × 2,071,142.36
  4. Step 4: Simplify right side
    3,105,431.61x = 8,883,300,389,150.43
  5. Step 5: Solve for x
    x = 8,883,300,389,150.43/3,105,431.61
  6. Step 6: Final answer
    x = 2,860,568.68

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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.