Home / 4,890.16-7,331.76-2,291.68

Finding the Fourth Proportional to 4,890.16, 7,331.76 and 2,291.68

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Solution

The fourth proportional to 4,890.16, 7,331.76 and 2,291.68 is: 3,435.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.16 : 7,331.76 = 2,291.68 : x
  2. Step 2: Convert to fraction form
    4,890.16/7,331.76 = 2,291.68/x
  3. Step 3: Cross multiply
    4,890.16x = 7,331.76 × 2,291.68
  4. Step 4: Simplify right side
    4,890.16x = 16,802,047.76
  5. Step 5: Solve for x
    x = 16,802,047.76/4,890.16
  6. Step 6: Final answer
    x = 3,435.89

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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.