Home / 7,457.20-11,185.62-3,074.92

Finding the Fourth Proportional to 7,457.20, 11,185.62 and 3,074.92

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Solution

The fourth proportional to 7,457.20, 11,185.62 and 3,074.92 is: 4,612.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,457.20 : 11,185.62 = 3,074.92 : x
  2. Step 2: Convert to fraction form
    7,457.20/11,185.62 = 3,074.92/x
  3. Step 3: Cross multiply
    7,457.20x = 11,185.62 × 3,074.92
  4. Step 4: Simplify right side
    7,457.20x = 34,394,886.65
  5. Step 5: Solve for x
    x = 34,394,886.65/7,457.20
  6. Step 6: Final answer
    x = 4,612.31

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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.