Home / 3,886.07-5,362.81-2,313.86

Finding the Fourth Proportional to 3,886.07, 5,362.81 and 2,313.86

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Solution

The fourth proportional to 3,886.07, 5,362.81 and 2,313.86 is: 3,193.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886.07 : 5,362.81 = 2,313.86 : x
  2. Step 2: Convert to fraction form
    3,886.07/5,362.81 = 2,313.86/x
  3. Step 3: Cross multiply
    3,886.07x = 5,362.81 × 2,313.86
  4. Step 4: Simplify right side
    3,886.07x = 12,408,758.95
  5. Step 5: Solve for x
    x = 12,408,758.95/3,886.07
  6. Step 6: Final answer
    x = 3,193.14

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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.