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Finding the Fourth Proportional to 1,903.44, 2,857.56 and 1,616.72

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Solution

The fourth proportional to 1,903.44, 2,857.56 and 1,616.72 is: 2,427.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,903.44 : 2,857.56 = 1,616.72 : x
  2. Step 2: Convert to fraction form
    1,903.44/2,857.56 = 1,616.72/x
  3. Step 3: Cross multiply
    1,903.44x = 2,857.56 × 1,616.72
  4. Step 4: Simplify right side
    1,903.44x = 4,619,874.40
  5. Step 5: Solve for x
    x = 4,619,874.40/1,903.44
  6. Step 6: Final answer
    x = 2,427.12

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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.