Home / 4,858.40-7,287.60-3,407.78

Finding the Fourth Proportional to 4,858.40, 7,287.60 and 3,407.78

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Solution

The fourth proportional to 4,858.40, 7,287.60 and 3,407.78 is: 5,111.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,858.40 : 7,287.60 = 3,407.78 : x
  2. Step 2: Convert to fraction form
    4,858.40/7,287.60 = 3,407.78/x
  3. Step 3: Cross multiply
    4,858.40x = 7,287.60 × 3,407.78
  4. Step 4: Simplify right side
    4,858.40x = 24,834,537.53
  5. Step 5: Solve for x
    x = 24,834,537.53/4,858.40
  6. Step 6: Final answer
    x = 5,111.67

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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.