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Finding the Fourth Proportional to 1,874.77, 2,809.63 and 997.14

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Solution

The fourth proportional to 1,874.77, 2,809.63 and 997.14 is: 1,494.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.77 : 2,809.63 = 997.14 : x
  2. Step 2: Convert to fraction form
    1,874.77/2,809.63 = 997.14/x
  3. Step 3: Cross multiply
    1,874.77x = 2,809.63 × 997.14
  4. Step 4: Simplify right side
    1,874.77x = 2,801,594.46
  5. Step 5: Solve for x
    x = 2,801,594.46/1,874.77
  6. Step 6: Final answer
    x = 1,494.37

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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.