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Finding the Fourth Proportional to 1,718.55, 2,579.04 and 1,553.31

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Solution

The fourth proportional to 1,718.55, 2,579.04 and 1,553.31 is: 2,331.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,718.55 : 2,579.04 = 1,553.31 : x
  2. Step 2: Convert to fraction form
    1,718.55/2,579.04 = 1,553.31/x
  3. Step 3: Cross multiply
    1,718.55x = 2,579.04 × 1,553.31
  4. Step 4: Simplify right side
    1,718.55x = 4,006,048.62
  5. Step 5: Solve for x
    x = 4,006,048.62/1,718.55
  6. Step 6: Final answer
    x = 2,331.06

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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.