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Finding the Fourth Proportional to 1,604.74, 2,214.50 and 906.10

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Solution

The fourth proportional to 1,604.74, 2,214.50 and 906.10 is: 1,250.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,604.74 : 2,214.50 = 906.10 : x
  2. Step 2: Convert to fraction form
    1,604.74/2,214.50 = 906.10/x
  3. Step 3: Cross multiply
    1,604.74x = 2,214.50 × 906.10
  4. Step 4: Simplify right side
    1,604.74x = 2,006,558.45
  5. Step 5: Solve for x
    x = 2,006,558.45/1,604.74
  6. Step 6: Final answer
    x = 1,250.39

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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.