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Finding the Fourth Proportional to 5,085.99, 7,628.99 and 1,798.88

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Solution

The fourth proportional to 5,085.99, 7,628.99 and 1,798.88 is: 2,698.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,085.99 : 7,628.99 = 1,798.88 : x
  2. Step 2: Convert to fraction form
    5,085.99/7,628.99 = 1,798.88/x
  3. Step 3: Cross multiply
    5,085.99x = 7,628.99 × 1,798.88
  4. Step 4: Simplify right side
    5,085.99x = 13,723,590.39
  5. Step 5: Solve for x
    x = 13,723,590.39/5,085.99
  6. Step 6: Final answer
    x = 2,698.31

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Double scale
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Similar ratio
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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.