Home / 5,455.18-8,173.36-2,991.75

Finding the Fourth Proportional to 5,455.18, 8,173.36 and 2,991.75

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Solution

The fourth proportional to 5,455.18, 8,173.36 and 2,991.75 is: 4,482.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.18 : 8,173.36 = 2,991.75 : x
  2. Step 2: Convert to fraction form
    5,455.18/8,173.36 = 2,991.75/x
  3. Step 3: Cross multiply
    5,455.18x = 8,173.36 × 2,991.75
  4. Step 4: Simplify right side
    5,455.18x = 24,452,649.78
  5. Step 5: Solve for x
    x = 24,452,649.78/5,455.18
  6. Step 6: Final answer
    x = 4,482.46

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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.