Home / 2,938.86-4,399.64-2,574.36

Finding the Fourth Proportional to 2,938.86, 4,399.64 and 2,574.36

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Solution

The fourth proportional to 2,938.86, 4,399.64 and 2,574.36 is: 3,853.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.86 : 4,399.64 = 2,574.36 : x
  2. Step 2: Convert to fraction form
    2,938.86/4,399.64 = 2,574.36/x
  3. Step 3: Cross multiply
    2,938.86x = 4,399.64 × 2,574.36
  4. Step 4: Simplify right side
    2,938.86x = 11,326,244.36
  5. Step 5: Solve for x
    x = 11,326,244.36/2,938.86
  6. Step 6: Final answer
    x = 3,853.96

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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.