Home / 2,084.40-3,120.84-1,718.64

Finding the Fourth Proportional to 2,084.40, 3,120.84 and 1,718.64

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Solution

The fourth proportional to 2,084.40, 3,120.84 and 1,718.64 is: 2,573.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,084.40 : 3,120.84 = 1,718.64 : x
  2. Step 2: Convert to fraction form
    2,084.40/3,120.84 = 1,718.64/x
  3. Step 3: Cross multiply
    2,084.40x = 3,120.84 × 1,718.64
  4. Step 4: Simplify right side
    2,084.40x = 5,363,600.46
  5. Step 5: Solve for x
    x = 5,363,600.46/2,084.40
  6. Step 6: Final answer
    x = 2,573.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.