Home / 4,435.20-6,121.36-3,688.16

Finding the Fourth Proportional to 4,435.20, 6,121.36 and 3,688.16

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Solution

The fourth proportional to 4,435.20, 6,121.36 and 3,688.16 is: 5,090.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,435.20 : 6,121.36 = 3,688.16 : x
  2. Step 2: Convert to fraction form
    4,435.20/6,121.36 = 3,688.16/x
  3. Step 3: Cross multiply
    4,435.20x = 6,121.36 × 3,688.16
  4. Step 4: Simplify right side
    4,435.20x = 22,576,555.10
  5. Step 5: Solve for x
    x = 22,576,555.10/4,435.20
  6. Step 6: Final answer
    x = 5,090.31

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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.