Home / 3,212.96-4,434.72-1,816.16

Finding the Fourth Proportional to 3,212.96, 4,434.72 and 1,816.16

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Solution

The fourth proportional to 3,212.96, 4,434.72 and 1,816.16 is: 2,506.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.96 : 4,434.72 = 1,816.16 : x
  2. Step 2: Convert to fraction form
    3,212.96/4,434.72 = 1,816.16/x
  3. Step 3: Cross multiply
    3,212.96x = 4,434.72 × 1,816.16
  4. Step 4: Simplify right side
    3,212.96x = 8,054,161.08
  5. Step 5: Solve for x
    x = 8,054,161.08/3,212.96
  6. Step 6: Final answer
    x = 2,506.77

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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.