Home / 4,836.88-6,688.29-3,840.40

Finding the Fourth Proportional to 4,836.88, 6,688.29 and 3,840.40

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Solution

The fourth proportional to 4,836.88, 6,688.29 and 3,840.40 is: 5,310.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,836.88 : 6,688.29 = 3,840.40 : x
  2. Step 2: Convert to fraction form
    4,836.88/6,688.29 = 3,840.40/x
  3. Step 3: Cross multiply
    4,836.88x = 6,688.29 × 3,840.40
  4. Step 4: Simplify right side
    4,836.88x = 25,685,708.92
  5. Step 5: Solve for x
    x = 25,685,708.92/4,836.88
  6. Step 6: Final answer
    x = 5,310.39

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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.