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Finding the Fourth Proportional to 1,898.32, 2,832.77 and 1,679.62

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Solution

The fourth proportional to 1,898.32, 2,832.77 and 1,679.62 is: 2,506.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898.32 : 2,832.77 = 1,679.62 : x
  2. Step 2: Convert to fraction form
    1,898.32/2,832.77 = 1,679.62/x
  3. Step 3: Cross multiply
    1,898.32x = 2,832.77 × 1,679.62
  4. Step 4: Simplify right side
    1,898.32x = 4,757,977.15
  5. Step 5: Solve for x
    x = 4,757,977.15/1,898.32
  6. Step 6: Final answer
    x = 2,506.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.