Home / 2,784.75-3,841.67-1,605.14

Finding the Fourth Proportional to 2,784.75, 3,841.67 and 1,605.14

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Solution

The fourth proportional to 2,784.75, 3,841.67 and 1,605.14 is: 2,214.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784.75 : 3,841.67 = 1,605.14 : x
  2. Step 2: Convert to fraction form
    2,784.75/3,841.67 = 1,605.14/x
  3. Step 3: Cross multiply
    2,784.75x = 3,841.67 × 1,605.14
  4. Step 4: Simplify right side
    2,784.75x = 6,166,390.95
  5. Step 5: Solve for x
    x = 6,166,390.95/2,784.75
  6. Step 6: Final answer
    x = 2,214.34

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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.