Home / 6,292.40-8,684.60-3,639.36

Finding the Fourth Proportional to 6,292.40, 8,684.60 and 3,639.36

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Solution

The fourth proportional to 6,292.40, 8,684.60 and 3,639.36 is: 5,022.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,292.40 : 8,684.60 = 3,639.36 : x
  2. Step 2: Convert to fraction form
    6,292.40/8,684.60 = 3,639.36/x
  3. Step 3: Cross multiply
    6,292.40x = 8,684.60 × 3,639.36
  4. Step 4: Simplify right side
    6,292.40x = 31,606,385.86
  5. Step 5: Solve for x
    x = 31,606,385.86/6,292.40
  6. Step 6: Final answer
    x = 5,022.95

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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.