Home / 5,665.12-7,817.34-3,427.36

Finding the Fourth Proportional to 5,665.12, 7,817.34 and 3,427.36

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Solution

The fourth proportional to 5,665.12, 7,817.34 and 3,427.36 is: 4,729.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,665.12 : 7,817.34 = 3,427.36 : x
  2. Step 2: Convert to fraction form
    5,665.12/7,817.34 = 3,427.36/x
  3. Step 3: Cross multiply
    5,665.12x = 7,817.34 × 3,427.36
  4. Step 4: Simplify right side
    5,665.12x = 26,792,838.42
  5. Step 5: Solve for x
    x = 26,792,838.42/5,665.12
  6. Step 6: Final answer
    x = 4,729.44

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1.5x scale

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.