Home / 5,090.98-7,636.48-1,393.25

Finding the Fourth Proportional to 5,090.98, 7,636.48 and 1,393.25

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Solution

The fourth proportional to 5,090.98, 7,636.48 and 1,393.25 is: 2,089.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.98 : 7,636.48 = 1,393.25 : x
  2. Step 2: Convert to fraction form
    5,090.98/7,636.48 = 1,393.25/x
  3. Step 3: Cross multiply
    5,090.98x = 7,636.48 × 1,393.25
  4. Step 4: Simplify right side
    5,090.98x = 10,639,484.09
  5. Step 5: Solve for x
    x = 10,639,484.09/5,090.98
  6. Step 6: Final answer
    x = 2,089.87

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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.