Home / 2,820.26-4,230.12-1,668.44

Finding the Fourth Proportional to 2,820.26, 4,230.12 and 1,668.44

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Solution

The fourth proportional to 2,820.26, 4,230.12 and 1,668.44 is: 2,502.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.26 : 4,230.12 = 1,668.44 : x
  2. Step 2: Convert to fraction form
    2,820.26/4,230.12 = 1,668.44/x
  3. Step 3: Cross multiply
    2,820.26x = 4,230.12 × 1,668.44
  4. Step 4: Simplify right side
    2,820.26x = 7,057,701.41
  5. Step 5: Solve for x
    x = 7,057,701.41/2,820.26
  6. Step 6: Final answer
    x = 2,502.50

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Half scale
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Double scale
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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.