Home / 5,912.81-8,159.64-3,395.19

Finding the Fourth Proportional to 5,912.81, 8,159.64 and 3,395.19

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Solution

The fourth proportional to 5,912.81, 8,159.64 and 3,395.19 is: 4,685.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,912.81 : 8,159.64 = 3,395.19 : x
  2. Step 2: Convert to fraction form
    5,912.81/8,159.64 = 3,395.19/x
  3. Step 3: Cross multiply
    5,912.81x = 8,159.64 × 3,395.19
  4. Step 4: Simplify right side
    5,912.81x = 27,703,528.13
  5. Step 5: Solve for x
    x = 27,703,528.13/5,912.81
  6. Step 6: Final answer
    x = 4,685.34

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Double scale
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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.