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Finding the Fourth Proportional to 5,777.70, 8,667.30 and 1,880.78

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Solution

The fourth proportional to 5,777.70, 8,667.30 and 1,880.78 is: 2,821.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,777.70 : 8,667.30 = 1,880.78 : x
  2. Step 2: Convert to fraction form
    5,777.70/8,667.30 = 1,880.78/x
  3. Step 3: Cross multiply
    5,777.70x = 8,667.30 × 1,880.78
  4. Step 4: Simplify right side
    5,777.70x = 16,301,284.49
  5. Step 5: Solve for x
    x = 16,301,284.49/5,777.70
  6. Step 6: Final answer
    x = 2,821.41

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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.