Home / 6,972.21-9,619.28-3,985.93

Finding the Fourth Proportional to 6,972.21, 9,619.28 and 3,985.93

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Solution

The fourth proportional to 6,972.21, 9,619.28 and 3,985.93 is: 5,499.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,972.21 : 9,619.28 = 3,985.93 : x
  2. Step 2: Convert to fraction form
    6,972.21/9,619.28 = 3,985.93/x
  3. Step 3: Cross multiply
    6,972.21x = 9,619.28 × 3,985.93
  4. Step 4: Simplify right side
    6,972.21x = 38,341,776.73
  5. Step 5: Solve for x
    x = 38,341,776.73/6,972.21
  6. Step 6: Final answer
    x = 5,499.23

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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.