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Finding the Fourth Proportional to 2,899.87, 4,001.79 and 1,573.57

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Solution

The fourth proportional to 2,899.87, 4,001.79 and 1,573.57 is: 2,171.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,899.87 : 4,001.79 = 1,573.57 : x
  2. Step 2: Convert to fraction form
    2,899.87/4,001.79 = 1,573.57/x
  3. Step 3: Cross multiply
    2,899.87x = 4,001.79 × 1,573.57
  4. Step 4: Simplify right side
    2,899.87x = 6,297,082.75
  5. Step 5: Solve for x
    x = 6,297,082.75/2,899.87
  6. Step 6: Final answer
    x = 2,171.50

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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.