Home / 3,903.81-5,386.28-2,310.54

Finding the Fourth Proportional to 3,903.81, 5,386.28 and 2,310.54

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Solution

The fourth proportional to 3,903.81, 5,386.28 and 2,310.54 is: 3,187.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.81 : 5,386.28 = 2,310.54 : x
  2. Step 2: Convert to fraction form
    3,903.81/5,386.28 = 2,310.54/x
  3. Step 3: Cross multiply
    3,903.81x = 5,386.28 × 2,310.54
  4. Step 4: Simplify right side
    3,903.81x = 12,445,203.84
  5. Step 5: Solve for x
    x = 12,445,203.84/3,903.81
  6. Step 6: Final answer
    x = 3,187.96

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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.