Home / 3,289.69-4,937.32-1,316.70

Finding the Fourth Proportional to 3,289.69, 4,937.32 and 1,316.70

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Solution

The fourth proportional to 3,289.69, 4,937.32 and 1,316.70 is: 1,976.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,289.69 : 4,937.32 = 1,316.70 : x
  2. Step 2: Convert to fraction form
    3,289.69/4,937.32 = 1,316.70/x
  3. Step 3: Cross multiply
    3,289.69x = 4,937.32 × 1,316.70
  4. Step 4: Simplify right side
    3,289.69x = 6,500,970.20
  5. Step 5: Solve for x
    x = 6,500,970.20/3,289.69
  6. Step 6: Final answer
    x = 1,976.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.