Home / 5,730.21-7,907.49-3,491.28

Finding the Fourth Proportional to 5,730.21, 7,907.49 and 3,491.28

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Solution

The fourth proportional to 5,730.21, 7,907.49 and 3,491.28 is: 4,817.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,730.21 : 7,907.49 = 3,491.28 : x
  2. Step 2: Convert to fraction form
    5,730.21/7,907.49 = 3,491.28/x
  3. Step 3: Cross multiply
    5,730.21x = 7,907.49 × 3,491.28
  4. Step 4: Simplify right side
    5,730.21x = 27,607,261.69
  5. Step 5: Solve for x
    x = 27,607,261.69/5,730.21
  6. Step 6: Final answer
    x = 4,817.84

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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.