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Finding the Fourth Proportional to 2,173.08, 2,995.74 and 1,551

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Solution

The fourth proportional to 2,173.08, 2,995.74 and 1,551 is: 2,138.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.08 : 2,995.74 = 1,551 : x
  2. Step 2: Convert to fraction form
    2,173.08/2,995.74 = 1,551/x
  3. Step 3: Cross multiply
    2,173.08x = 2,995.74 × 1,551
  4. Step 4: Simplify right side
    2,173.08x = 4,646,392.74
  5. Step 5: Solve for x
    x = 4,646,392.74/2,173.08
  6. Step 6: Final answer
    x = 2,138.16

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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.