Home / 5,776.80-8,667.36-2,078.88

Finding the Fourth Proportional to 5,776.80, 8,667.36 and 2,078.88

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Solution

The fourth proportional to 5,776.80, 8,667.36 and 2,078.88 is: 3,119.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,776.80 : 8,667.36 = 2,078.88 : x
  2. Step 2: Convert to fraction form
    5,776.80/8,667.36 = 2,078.88/x
  3. Step 3: Cross multiply
    5,776.80x = 8,667.36 × 2,078.88
  4. Step 4: Simplify right side
    5,776.80x = 18,018,401.36
  5. Step 5: Solve for x
    x = 18,018,401.36/5,776.80
  6. Step 6: Final answer
    x = 3,119.10

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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.