Home / 1,546.31-2,317.90-621.69

Finding the Fourth Proportional to 1,546.31, 2,317.90 and 621.69

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Solution

The fourth proportional to 1,546.31, 2,317.90 and 621.69 is: 931.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,546.31 : 2,317.90 = 621.69 : x
  2. Step 2: Convert to fraction form
    1,546.31/2,317.90 = 621.69/x
  3. Step 3: Cross multiply
    1,546.31x = 2,317.90 × 621.69
  4. Step 4: Simplify right side
    1,546.31x = 1,441,015.25
  5. Step 5: Solve for x
    x = 1,441,015.25/1,546.31
  6. Step 6: Final answer
    x = 931.91

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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.