Home / 3,530.81-4,872.16-2,114.21

Finding the Fourth Proportional to 3,530.81, 4,872.16 and 2,114.21

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Solution

The fourth proportional to 3,530.81, 4,872.16 and 2,114.21 is: 2,917.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,530.81 : 4,872.16 = 2,114.21 : x
  2. Step 2: Convert to fraction form
    3,530.81/4,872.16 = 2,114.21/x
  3. Step 3: Cross multiply
    3,530.81x = 4,872.16 × 2,114.21
  4. Step 4: Simplify right side
    3,530.81x = 10,300,769.39
  5. Step 5: Solve for x
    x = 10,300,769.39/3,530.81
  6. Step 6: Final answer
    x = 2,917.40

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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.