Home / 1,679.33-2,317.40-971.06

Finding the Fourth Proportional to 1,679.33, 2,317.40 and 971.06

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Solution

The fourth proportional to 1,679.33, 2,317.40 and 971.06 is: 1,340.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679.33 : 2,317.40 = 971.06 : x
  2. Step 2: Convert to fraction form
    1,679.33/2,317.40 = 971.06/x
  3. Step 3: Cross multiply
    1,679.33x = 2,317.40 × 971.06
  4. Step 4: Simplify right side
    1,679.33x = 2,250,318.00
  5. Step 5: Solve for x
    x = 2,250,318.00/1,679.33
  6. Step 6: Final answer
    x = 1,340.01

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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.