Home / 6,289.83-8,678.52-3,901.95

Finding the Fourth Proportional to 6,289.83, 8,678.52 and 3,901.95

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Solution

The fourth proportional to 6,289.83, 8,678.52 and 3,901.95 is: 5,383.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289.83 : 8,678.52 = 3,901.95 : x
  2. Step 2: Convert to fraction form
    6,289.83/8,678.52 = 3,901.95/x
  3. Step 3: Cross multiply
    6,289.83x = 8,678.52 × 3,901.95
  4. Step 4: Simplify right side
    6,289.83x = 33,863,151.11
  5. Step 5: Solve for x
    x = 33,863,151.11/6,289.83
  6. Step 6: Final answer
    x = 5,383.79

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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.