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Finding the Fourth Proportional to 1,260.62, 1,888.37 and 577.10

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Solution

The fourth proportional to 1,260.62, 1,888.37 and 577.10 is: 864.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.62 : 1,888.37 = 577.10 : x
  2. Step 2: Convert to fraction form
    1,260.62/1,888.37 = 577.10/x
  3. Step 3: Cross multiply
    1,260.62x = 1,888.37 × 577.10
  4. Step 4: Simplify right side
    1,260.62x = 1,089,778.33
  5. Step 5: Solve for x
    x = 1,089,778.33/1,260.62
  6. Step 6: Final answer
    x = 864.48

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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.