Home / 3,409.16-5,114.14-1,218.10

Finding the Fourth Proportional to 3,409.16, 5,114.14 and 1,218.10

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Solution

The fourth proportional to 3,409.16, 5,114.14 and 1,218.10 is: 1,827.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409.16 : 5,114.14 = 1,218.10 : x
  2. Step 2: Convert to fraction form
    3,409.16/5,114.14 = 1,218.10/x
  3. Step 3: Cross multiply
    3,409.16x = 5,114.14 × 1,218.10
  4. Step 4: Simplify right side
    3,409.16x = 6,229,533.93
  5. Step 5: Solve for x
    x = 6,229,533.93/3,409.16
  6. Step 6: Final answer
    x = 1,827.29

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.