Home / 3,316.32-4,576.36-1,989.36

Finding the Fourth Proportional to 3,316.32, 4,576.36 and 1,989.36

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Solution

The fourth proportional to 3,316.32, 4,576.36 and 1,989.36 is: 2,745.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316.32 : 4,576.36 = 1,989.36 : x
  2. Step 2: Convert to fraction form
    3,316.32/4,576.36 = 1,989.36/x
  3. Step 3: Cross multiply
    3,316.32x = 4,576.36 × 1,989.36
  4. Step 4: Simplify right side
    3,316.32x = 9,104,027.53
  5. Step 5: Solve for x
    x = 9,104,027.53/3,316.32
  6. Step 6: Final answer
    x = 2,745.22

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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.