Home / 5,912.80-8,159.63-3,395.18

Finding the Fourth Proportional to 5,912.80, 8,159.63 and 3,395.18

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Solution

The fourth proportional to 5,912.80, 8,159.63 and 3,395.18 is: 4,685.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,912.80 : 8,159.63 = 3,395.18 : x
  2. Step 2: Convert to fraction form
    5,912.80/8,159.63 = 3,395.18/x
  3. Step 3: Cross multiply
    5,912.80x = 8,159.63 × 3,395.18
  4. Step 4: Simplify right side
    5,912.80x = 27,703,416.01
  5. Step 5: Solve for x
    x = 27,703,416.01/5,912.80
  6. Step 6: Final answer
    x = 4,685.33

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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.