Home / 6,371.21-8,792.40-3,538.50

Finding the Fourth Proportional to 6,371.21, 8,792.40 and 3,538.50

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Solution

The fourth proportional to 6,371.21, 8,792.40 and 3,538.50 is: 4,883.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,371.21 : 8,792.40 = 3,538.50 : x
  2. Step 2: Convert to fraction form
    6,371.21/8,792.40 = 3,538.50/x
  3. Step 3: Cross multiply
    6,371.21x = 8,792.40 × 3,538.50
  4. Step 4: Simplify right side
    6,371.21x = 31,111,907.40
  5. Step 5: Solve for x
    x = 31,111,907.40/6,371.21
  6. Step 6: Final answer
    x = 4,883.21

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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.