Home / 3,903.44-5,386.69-2,135.02

Finding the Fourth Proportional to 3,903.44, 5,386.69 and 2,135.02

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Solution

The fourth proportional to 3,903.44, 5,386.69 and 2,135.02 is: 2,946.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.44 : 5,386.69 = 2,135.02 : x
  2. Step 2: Convert to fraction form
    3,903.44/5,386.69 = 2,135.02/x
  3. Step 3: Cross multiply
    3,903.44x = 5,386.69 × 2,135.02
  4. Step 4: Simplify right side
    3,903.44x = 11,500,672.08
  5. Step 5: Solve for x
    x = 11,500,672.08/3,903.44
  6. Step 6: Final answer
    x = 2,946.30

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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.