Home / 2,778.29-3,834.36-1,583.45

Finding the Fourth Proportional to 2,778.29, 3,834.36 and 1,583.45

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Solution

The fourth proportional to 2,778.29, 3,834.36 and 1,583.45 is: 2,185.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.29 : 3,834.36 = 1,583.45 : x
  2. Step 2: Convert to fraction form
    2,778.29/3,834.36 = 1,583.45/x
  3. Step 3: Cross multiply
    2,778.29x = 3,834.36 × 1,583.45
  4. Step 4: Simplify right side
    2,778.29x = 6,071,498.17
  5. Step 5: Solve for x
    x = 6,071,498.17/2,778.29
  6. Step 6: Final answer
    x = 2,185.34

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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.