Home / 3,995.70-5,513.81-2,316.98

Finding the Fourth Proportional to 3,995.70, 5,513.81 and 2,316.98

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Solution

The fourth proportional to 3,995.70, 5,513.81 and 2,316.98 is: 3,197.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.70 : 5,513.81 = 2,316.98 : x
  2. Step 2: Convert to fraction form
    3,995.70/5,513.81 = 2,316.98/x
  3. Step 3: Cross multiply
    3,995.70x = 5,513.81 × 2,316.98
  4. Step 4: Simplify right side
    3,995.70x = 12,775,348.34
  5. Step 5: Solve for x
    x = 12,775,348.34/3,995.70
  6. Step 6: Final answer
    x = 3,197.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.