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Finding the Fourth Proportional to 1,305.73, 1,798.90 and 973.50

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Solution

The fourth proportional to 1,305.73, 1,798.90 and 973.50 is: 1,341.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305.73 : 1,798.90 = 973.50 : x
  2. Step 2: Convert to fraction form
    1,305.73/1,798.90 = 973.50/x
  3. Step 3: Cross multiply
    1,305.73x = 1,798.90 × 973.50
  4. Step 4: Simplify right side
    1,305.73x = 1,751,229.15
  5. Step 5: Solve for x
    x = 1,751,229.15/1,305.73
  6. Step 6: Final answer
    x = 1,341.19

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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.