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Finding the Fourth Proportional to 1,603.99, 2,214.03 and 1,006.75

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Solution

The fourth proportional to 1,603.99, 2,214.03 and 1,006.75 is: 1,389.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603.99 : 2,214.03 = 1,006.75 : x
  2. Step 2: Convert to fraction form
    1,603.99/2,214.03 = 1,006.75/x
  3. Step 3: Cross multiply
    1,603.99x = 2,214.03 × 1,006.75
  4. Step 4: Simplify right side
    1,603.99x = 2,228,974.70
  5. Step 5: Solve for x
    x = 2,228,974.70/1,603.99
  6. Step 6: Final answer
    x = 1,389.64

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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.