Home / 3,903.16-5,386.32-2,201.50

Finding the Fourth Proportional to 3,903.16, 5,386.32 and 2,201.50

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Solution

The fourth proportional to 3,903.16, 5,386.32 and 2,201.50 is: 3,038.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.16 : 5,386.32 = 2,201.50 : x
  2. Step 2: Convert to fraction form
    3,903.16/5,386.32 = 2,201.50/x
  3. Step 3: Cross multiply
    3,903.16x = 5,386.32 × 2,201.50
  4. Step 4: Simplify right side
    3,903.16x = 11,857,983.48
  5. Step 5: Solve for x
    x = 11,857,983.48/3,903.16
  6. Step 6: Final answer
    x = 3,038.05

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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.