Home / 3,115.58-4,668.72-2,331.80

Finding the Fourth Proportional to 3,115.58, 4,668.72 and 2,331.80

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Solution

The fourth proportional to 3,115.58, 4,668.72 and 2,331.80 is: 3,494.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.58 : 4,668.72 = 2,331.80 : x
  2. Step 2: Convert to fraction form
    3,115.58/4,668.72 = 2,331.80/x
  3. Step 3: Cross multiply
    3,115.58x = 4,668.72 × 2,331.80
  4. Step 4: Simplify right side
    3,115.58x = 10,886,521.30
  5. Step 5: Solve for x
    x = 10,886,521.30/3,115.58
  6. Step 6: Final answer
    x = 3,494.22

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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.