Home / 1,383.25-2,069.70-973.21

Finding the Fourth Proportional to 1,383.25, 2,069.70 and 973.21

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Solution

The fourth proportional to 1,383.25, 2,069.70 and 973.21 is: 1,456.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383.25 : 2,069.70 = 973.21 : x
  2. Step 2: Convert to fraction form
    1,383.25/2,069.70 = 973.21/x
  3. Step 3: Cross multiply
    1,383.25x = 2,069.70 × 973.21
  4. Step 4: Simplify right side
    1,383.25x = 2,014,252.74
  5. Step 5: Solve for x
    x = 2,014,252.74/1,383.25
  6. Step 6: Final answer
    x = 1,456.17

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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.