Home / 3,977.60-5,488.14-2,384.74

Finding the Fourth Proportional to 3,977.60, 5,488.14 and 2,384.74

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Solution

The fourth proportional to 3,977.60, 5,488.14 and 2,384.74 is: 3,290.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.60 : 5,488.14 = 2,384.74 : x
  2. Step 2: Convert to fraction form
    3,977.60/5,488.14 = 2,384.74/x
  3. Step 3: Cross multiply
    3,977.60x = 5,488.14 × 2,384.74
  4. Step 4: Simplify right side
    3,977.60x = 13,087,747.62
  5. Step 5: Solve for x
    x = 13,087,747.62/3,977.60
  6. Step 6: Final answer
    x = 3,290.36

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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.