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Finding the Fourth Proportional to 1,804.50, 2,490.08 and 1,058.60

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Solution

The fourth proportional to 1,804.50, 2,490.08 and 1,058.60 is: 1,460.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,804.50 : 2,490.08 = 1,058.60 : x
  2. Step 2: Convert to fraction form
    1,804.50/2,490.08 = 1,058.60/x
  3. Step 3: Cross multiply
    1,804.50x = 2,490.08 × 1,058.60
  4. Step 4: Simplify right side
    1,804.50x = 2,635,999.62
  5. Step 5: Solve for x
    x = 2,635,999.62/1,804.50
  6. Step 6: Final answer
    x = 1,460.79

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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.