Home / 3,486.87-4,812.95-2,070.79

Finding the Fourth Proportional to 3,486.87, 4,812.95 and 2,070.79

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Solution

The fourth proportional to 3,486.87, 4,812.95 and 2,070.79 is: 2,858.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.87 : 4,812.95 = 2,070.79 : x
  2. Step 2: Convert to fraction form
    3,486.87/4,812.95 = 2,070.79/x
  3. Step 3: Cross multiply
    3,486.87x = 4,812.95 × 2,070.79
  4. Step 4: Simplify right side
    3,486.87x = 9,966,608.73
  5. Step 5: Solve for x
    x = 9,966,608.73/3,486.87
  6. Step 6: Final answer
    x = 2,858.33

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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.