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Finding the Fourth Proportional to 5,783.40, 7,981.39 and 3,266.32

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Solution

The fourth proportional to 5,783.40, 7,981.39 and 3,266.32 is: 4,507.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,783.40 : 7,981.39 = 3,266.32 : x
  2. Step 2: Convert to fraction form
    5,783.40/7,981.39 = 3,266.32/x
  3. Step 3: Cross multiply
    5,783.40x = 7,981.39 × 3,266.32
  4. Step 4: Simplify right side
    5,783.40x = 26,069,773.78
  5. Step 5: Solve for x
    x = 26,069,773.78/5,783.40
  6. Step 6: Final answer
    x = 4,507.69

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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.