Home / 4,905.42-6,768.69-2,915.91

Finding the Fourth Proportional to 4,905.42, 6,768.69 and 2,915.91

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Solution

The fourth proportional to 4,905.42, 6,768.69 and 2,915.91 is: 4,023.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.42 : 6,768.69 = 2,915.91 : x
  2. Step 2: Convert to fraction form
    4,905.42/6,768.69 = 2,915.91/x
  3. Step 3: Cross multiply
    4,905.42x = 6,768.69 × 2,915.91
  4. Step 4: Simplify right side
    4,905.42x = 19,736,890.86
  5. Step 5: Solve for x
    x = 19,736,890.86/4,905.42
  6. Step 6: Final answer
    x = 4,023.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.