Home / 4,890.50-7,335.75-2,154.50

Finding the Fourth Proportional to 4,890.50, 7,335.75 and 2,154.50

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Solution

The fourth proportional to 4,890.50, 7,335.75 and 2,154.50 is: 3,231.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.50 : 7,335.75 = 2,154.50 : x
  2. Step 2: Convert to fraction form
    4,890.50/7,335.75 = 2,154.50/x
  3. Step 3: Cross multiply
    4,890.50x = 7,335.75 × 2,154.50
  4. Step 4: Simplify right side
    4,890.50x = 15,804,873.38
  5. Step 5: Solve for x
    x = 15,804,873.38/4,890.50
  6. Step 6: Final answer
    x = 3,231.75

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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.