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Finding the Fourth Proportional to 1,784.03, 2,680.16 and 1,265.32

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Solution

The fourth proportional to 1,784.03, 2,680.16 and 1,265.32 is: 1,900.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,784.03 : 2,680.16 = 1,265.32 : x
  2. Step 2: Convert to fraction form
    1,784.03/2,680.16 = 1,265.32/x
  3. Step 3: Cross multiply
    1,784.03x = 2,680.16 × 1,265.32
  4. Step 4: Simplify right side
    1,784.03x = 3,391,247.02
  5. Step 5: Solve for x
    x = 3,391,247.02/1,784.03
  6. Step 6: Final answer
    x = 1,900.89

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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.