Home / 5,451.40-8,174.82-2,985.56

Finding the Fourth Proportional to 5,451.40, 8,174.82 and 2,985.56

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Solution

The fourth proportional to 5,451.40, 8,174.82 and 2,985.56 is: 4,477.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451.40 : 8,174.82 = 2,985.56 : x
  2. Step 2: Convert to fraction form
    5,451.40/8,174.82 = 2,985.56/x
  3. Step 3: Cross multiply
    5,451.40x = 8,174.82 × 2,985.56
  4. Step 4: Simplify right side
    5,451.40x = 24,406,416.58
  5. Step 5: Solve for x
    x = 24,406,416.58/5,451.40
  6. Step 6: Final answer
    x = 4,477.09

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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.