Home / 4,992.30-7,488.45-4,020.30

Finding the Fourth Proportional to 4,992.30, 7,488.45 and 4,020.30

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Solution

The fourth proportional to 4,992.30, 7,488.45 and 4,020.30 is: 6,030.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,992.30 : 7,488.45 = 4,020.30 : x
  2. Step 2: Convert to fraction form
    4,992.30/7,488.45 = 4,020.30/x
  3. Step 3: Cross multiply
    4,992.30x = 7,488.45 × 4,020.30
  4. Step 4: Simplify right side
    4,992.30x = 30,105,815.54
  5. Step 5: Solve for x
    x = 30,105,815.54/4,992.30
  6. Step 6: Final answer
    x = 6,030.45

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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.