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Finding the Fourth Proportional to 1,553.96, 2,331.34 and 580.07

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Solution

The fourth proportional to 1,553.96, 2,331.34 and 580.07 is: 870.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553.96 : 2,331.34 = 580.07 : x
  2. Step 2: Convert to fraction form
    1,553.96/2,331.34 = 580.07/x
  3. Step 3: Cross multiply
    1,553.96x = 2,331.34 × 580.07
  4. Step 4: Simplify right side
    1,553.96x = 1,352,325.84
  5. Step 5: Solve for x
    x = 1,352,325.84/1,553.96
  6. Step 6: Final answer
    x = 870.25

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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.