Home / 5,429.70-8,144.55-4,992.30

Finding the Fourth Proportional to 5,429.70, 8,144.55 and 4,992.30

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Solution

The fourth proportional to 5,429.70, 8,144.55 and 4,992.30 is: 7,488.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.70 : 8,144.55 = 4,992.30 : x
  2. Step 2: Convert to fraction form
    5,429.70/8,144.55 = 4,992.30/x
  3. Step 3: Cross multiply
    5,429.70x = 8,144.55 × 4,992.30
  4. Step 4: Simplify right side
    5,429.70x = 40,660,036.97
  5. Step 5: Solve for x
    x = 40,660,036.97/5,429.70
  6. Step 6: Final answer
    x = 7,488.45

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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.