Home / 4,239.64-6,357.16-1,277.67

Finding the Fourth Proportional to 4,239.64, 6,357.16 and 1,277.67

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Solution

The fourth proportional to 4,239.64, 6,357.16 and 1,277.67 is: 1,915.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,239.64 : 6,357.16 = 1,277.67 : x
  2. Step 2: Convert to fraction form
    4,239.64/6,357.16 = 1,277.67/x
  3. Step 3: Cross multiply
    4,239.64x = 6,357.16 × 1,277.67
  4. Step 4: Simplify right side
    4,239.64x = 8,122,346.23
  5. Step 5: Solve for x
    x = 8,122,346.23/4,239.64
  6. Step 6: Final answer
    x = 1,915.81

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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.