Home / 3,210.93-4,431.09-1,813.68

Finding the Fourth Proportional to 3,210.93, 4,431.09 and 1,813.68

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Solution

The fourth proportional to 3,210.93, 4,431.09 and 1,813.68 is: 2,502.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.93 : 4,431.09 = 1,813.68 : x
  2. Step 2: Convert to fraction form
    3,210.93/4,431.09 = 1,813.68/x
  3. Step 3: Cross multiply
    3,210.93x = 4,431.09 × 1,813.68
  4. Step 4: Simplify right side
    3,210.93x = 8,036,579.31
  5. Step 5: Solve for x
    x = 8,036,579.31/3,210.93
  6. Step 6: Final answer
    x = 2,502.88

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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.