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Finding the Fourth Proportional to 5,867.21, 8,783.12 and 3,783.07

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Solution

The fourth proportional to 5,867.21, 8,783.12 and 3,783.07 is: 5,663.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,867.21 : 8,783.12 = 3,783.07 : x
  2. Step 2: Convert to fraction form
    5,867.21/8,783.12 = 3,783.07/x
  3. Step 3: Cross multiply
    5,867.21x = 8,783.12 × 3,783.07
  4. Step 4: Simplify right side
    5,867.21x = 33,227,145.28
  5. Step 5: Solve for x
    x = 33,227,145.28/5,867.21
  6. Step 6: Final answer
    x = 5,663.20

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1.5x scale

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.