Home / 3,215.10-4,436.70-1,798.92

Finding the Fourth Proportional to 3,215.10, 4,436.70 and 1,798.92

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Solution

The fourth proportional to 3,215.10, 4,436.70 and 1,798.92 is: 2,482.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.10 : 4,436.70 = 1,798.92 : x
  2. Step 2: Convert to fraction form
    3,215.10/4,436.70 = 1,798.92/x
  3. Step 3: Cross multiply
    3,215.10x = 4,436.70 × 1,798.92
  4. Step 4: Simplify right side
    3,215.10x = 7,981,268.36
  5. Step 5: Solve for x
    x = 7,981,268.36/3,215.10
  6. Step 6: Final answer
    x = 2,482.43

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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.