Home / 6,289.43-8,678.88-3,636.99

Finding the Fourth Proportional to 6,289.43, 8,678.88 and 3,636.99

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Solution

The fourth proportional to 6,289.43, 8,678.88 and 3,636.99 is: 5,018.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289.43 : 8,678.88 = 3,636.99 : x
  2. Step 2: Convert to fraction form
    6,289.43/8,678.88 = 3,636.99/x
  3. Step 3: Cross multiply
    6,289.43x = 8,678.88 × 3,636.99
  4. Step 4: Simplify right side
    6,289.43x = 31,564,999.77
  5. Step 5: Solve for x
    x = 31,564,999.77/6,289.43
  6. Step 6: Final answer
    x = 5,018.74

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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.