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Finding the Fourth Proportional to 3,345.27, 5,018.03 and 880.34

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Solution

The fourth proportional to 3,345.27, 5,018.03 and 880.34 is: 1,320.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,345.27 : 5,018.03 = 880.34 : x
  2. Step 2: Convert to fraction form
    3,345.27/5,018.03 = 880.34/x
  3. Step 3: Cross multiply
    3,345.27x = 5,018.03 × 880.34
  4. Step 4: Simplify right side
    3,345.27x = 4,417,551.29
  5. Step 5: Solve for x
    x = 4,417,551.29/3,345.27
  6. Step 6: Final answer
    x = 1,320.54

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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.