Home / 7,620.74-11,429.55-2,074.46

Finding the Fourth Proportional to 7,620.74, 11,429.55 and 2,074.46

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Solution

The fourth proportional to 7,620.74, 11,429.55 and 2,074.46 is: 3,111.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.74 : 11,429.55 = 2,074.46 : x
  2. Step 2: Convert to fraction form
    7,620.74/11,429.55 = 2,074.46/x
  3. Step 3: Cross multiply
    7,620.74x = 11,429.55 × 2,074.46
  4. Step 4: Simplify right side
    7,620.74x = 23,710,144.29
  5. Step 5: Solve for x
    x = 23,710,144.29/7,620.74
  6. Step 6: Final answer
    x = 3,111.27

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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.