Home / 6,113.37-8,435.38-3,988.34

Finding the Fourth Proportional to 6,113.37, 8,435.38 and 3,988.34

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Solution

The fourth proportional to 6,113.37, 8,435.38 and 3,988.34 is: 5,503.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,113.37 : 8,435.38 = 3,988.34 : x
  2. Step 2: Convert to fraction form
    6,113.37/8,435.38 = 3,988.34/x
  3. Step 3: Cross multiply
    6,113.37x = 8,435.38 × 3,988.34
  4. Step 4: Simplify right side
    6,113.37x = 33,643,163.47
  5. Step 5: Solve for x
    x = 33,643,163.47/6,113.37
  6. Step 6: Final answer
    x = 5,503.21

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Double scale
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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.