Home / 7,070.82-9,757.75-3,927.01

Finding the Fourth Proportional to 7,070.82, 9,757.75 and 3,927.01

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Solution

The fourth proportional to 7,070.82, 9,757.75 and 3,927.01 is: 5,419.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,070.82 : 9,757.75 = 3,927.01 : x
  2. Step 2: Convert to fraction form
    7,070.82/9,757.75 = 3,927.01/x
  3. Step 3: Cross multiply
    7,070.82x = 9,757.75 × 3,927.01
  4. Step 4: Simplify right side
    7,070.82x = 38,318,737.80
  5. Step 5: Solve for x
    x = 38,318,737.80/7,070.82
  6. Step 6: Final answer
    x = 5,419.28

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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.