Home / 6,824.46-9,417.64-3,840.28

Finding the Fourth Proportional to 6,824.46, 9,417.64 and 3,840.28

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Solution

The fourth proportional to 6,824.46, 9,417.64 and 3,840.28 is: 5,299.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,824.46 : 9,417.64 = 3,840.28 : x
  2. Step 2: Convert to fraction form
    6,824.46/9,417.64 = 3,840.28/x
  3. Step 3: Cross multiply
    6,824.46x = 9,417.64 × 3,840.28
  4. Step 4: Simplify right side
    6,824.46x = 36,166,374.54
  5. Step 5: Solve for x
    x = 36,166,374.54/6,824.46
  6. Step 6: Final answer
    x = 5,299.52

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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.