Home / 7,183.09-10,774.65-1,988.98

Finding the Fourth Proportional to 7,183.09, 10,774.65 and 1,988.98

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Solution

The fourth proportional to 7,183.09, 10,774.65 and 1,988.98 is: 2,983.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,183.09 : 10,774.65 = 1,988.98 : x
  2. Step 2: Convert to fraction form
    7,183.09/10,774.65 = 1,988.98/x
  3. Step 3: Cross multiply
    7,183.09x = 10,774.65 × 1,988.98
  4. Step 4: Simplify right side
    7,183.09x = 21,430,563.36
  5. Step 5: Solve for x
    x = 21,430,563.36/7,183.09
  6. Step 6: Final answer
    x = 2,983.47

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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.