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Finding the Fourth Proportional to 2,797, 3,859.94 and 1,555.08

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Solution

The fourth proportional to 2,797, 3,859.94 and 1,555.08 is: 2,146.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,797 : 3,859.94 = 1,555.08 : x
  2. Step 2: Convert to fraction form
    2,797/3,859.94 = 1,555.08/x
  3. Step 3: Cross multiply
    2,797x = 3,859.94 × 1,555.08
  4. Step 4: Simplify right side
    2,797x = 6,002,515.50
  5. Step 5: Solve for x
    x = 6,002,515.50/2,797
  6. Step 6: Final answer
    x = 2,146.05

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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.