Home / 6,840.74-9,440.33-3,856.72

Finding the Fourth Proportional to 6,840.74, 9,440.33 and 3,856.72

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Solution

The fourth proportional to 6,840.74, 9,440.33 and 3,856.72 is: 5,322.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,840.74 : 9,440.33 = 3,856.72 : x
  2. Step 2: Convert to fraction form
    6,840.74/9,440.33 = 3,856.72/x
  3. Step 3: Cross multiply
    6,840.74x = 9,440.33 × 3,856.72
  4. Step 4: Simplify right side
    6,840.74x = 36,408,666.63
  5. Step 5: Solve for x
    x = 36,408,666.63/6,840.74
  6. Step 6: Final answer
    x = 5,322.33

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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.