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Finding the Fourth Proportional to 1,662.65, 2,293.65 and 1,102.94

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Solution

The fourth proportional to 1,662.65, 2,293.65 and 1,102.94 is: 1,521.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,662.65 : 2,293.65 = 1,102.94 : x
  2. Step 2: Convert to fraction form
    1,662.65/2,293.65 = 1,102.94/x
  3. Step 3: Cross multiply
    1,662.65x = 2,293.65 × 1,102.94
  4. Step 4: Simplify right side
    1,662.65x = 2,529,746.86
  5. Step 5: Solve for x
    x = 2,529,746.86/1,662.65
  6. Step 6: Final answer
    x = 1,521.52

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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.