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Finding the Fourth Proportional to 4,287.69, 5,915.70 and 2,795.07

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Solution

The fourth proportional to 4,287.69, 5,915.70 and 2,795.07 is: 3,856.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287.69 : 5,915.70 = 2,795.07 : x
  2. Step 2: Convert to fraction form
    4,287.69/5,915.70 = 2,795.07/x
  3. Step 3: Cross multiply
    4,287.69x = 5,915.70 × 2,795.07
  4. Step 4: Simplify right side
    4,287.69x = 16,534,795.60
  5. Step 5: Solve for x
    x = 16,534,795.60/4,287.69
  6. Step 6: Final answer
    x = 3,856.34

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1.5x scale

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.