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Finding the Fourth Proportional to 1,455.18, 2,008.16 and 792.03

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Solution

The fourth proportional to 1,455.18, 2,008.16 and 792.03 is: 1,093.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455.18 : 2,008.16 = 792.03 : x
  2. Step 2: Convert to fraction form
    1,455.18/2,008.16 = 792.03/x
  3. Step 3: Cross multiply
    1,455.18x = 2,008.16 × 792.03
  4. Step 4: Simplify right side
    1,455.18x = 1,590,526.54
  5. Step 5: Solve for x
    x = 1,590,526.54/1,455.18
  6. Step 6: Final answer
    x = 1,093.01

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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.