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Finding the Fourth Proportional to 1,673.02, 2,509.22 and 698.86

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Solution

The fourth proportional to 1,673.02, 2,509.22 and 698.86 is: 1,048.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,673.02 : 2,509.22 = 698.86 : x
  2. Step 2: Convert to fraction form
    1,673.02/2,509.22 = 698.86/x
  3. Step 3: Cross multiply
    1,673.02x = 2,509.22 × 698.86
  4. Step 4: Simplify right side
    1,673.02x = 1,753,593.49
  5. Step 5: Solve for x
    x = 1,753,593.49/1,673.02
  6. Step 6: Final answer
    x = 1,048.16

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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.