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Finding the Fourth Proportional to 2,700.89, 4,051.34 and 1,399.63

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Solution

The fourth proportional to 2,700.89, 4,051.34 and 1,399.63 is: 2,099.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,700.89 : 4,051.34 = 1,399.63 : x
  2. Step 2: Convert to fraction form
    2,700.89/4,051.34 = 1,399.63/x
  3. Step 3: Cross multiply
    2,700.89x = 4,051.34 × 1,399.63
  4. Step 4: Simplify right side
    2,700.89x = 5,670,349.75
  5. Step 5: Solve for x
    x = 5,670,349.75/2,700.89
  6. Step 6: Final answer
    x = 2,099.44

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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.