Home / 7,188.21-10,784.34-2,257.74

Finding the Fourth Proportional to 7,188.21, 10,784.34 and 2,257.74

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Solution

The fourth proportional to 7,188.21, 10,784.34 and 2,257.74 is: 3,387.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,188.21 : 10,784.34 = 2,257.74 : x
  2. Step 2: Convert to fraction form
    7,188.21/10,784.34 = 2,257.74/x
  3. Step 3: Cross multiply
    7,188.21x = 10,784.34 × 2,257.74
  4. Step 4: Simplify right side
    7,188.21x = 24,348,235.79
  5. Step 5: Solve for x
    x = 24,348,235.79/7,188.21
  6. Step 6: Final answer
    x = 3,387.25

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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.