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Finding the Fourth Proportional to 2,855.07, 4,283.99 and 1,295.55

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Solution

The fourth proportional to 2,855.07, 4,283.99 and 1,295.55 is: 1,943.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.07 : 4,283.99 = 1,295.55 : x
  2. Step 2: Convert to fraction form
    2,855.07/4,283.99 = 1,295.55/x
  3. Step 3: Cross multiply
    2,855.07x = 4,283.99 × 1,295.55
  4. Step 4: Simplify right side
    2,855.07x = 5,550,116.77
  5. Step 5: Solve for x
    x = 5,550,116.77/2,855.07
  6. Step 6: Final answer
    x = 1,943.95

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1.5x scale

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.