Home / 2,379.84-3,285.92-1,718.16

Finding the Fourth Proportional to 2,379.84, 3,285.92 and 1,718.16

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Solution

The fourth proportional to 2,379.84, 3,285.92 and 1,718.16 is: 2,372.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.84 : 3,285.92 = 1,718.16 : x
  2. Step 2: Convert to fraction form
    2,379.84/3,285.92 = 1,718.16/x
  3. Step 3: Cross multiply
    2,379.84x = 3,285.92 × 1,718.16
  4. Step 4: Simplify right side
    2,379.84x = 5,645,736.31
  5. Step 5: Solve for x
    x = 5,645,736.31/2,379.84
  6. Step 6: Final answer
    x = 2,372.32

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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.