Home / 4,607.69-6,910.51-1,320.05

Finding the Fourth Proportional to 4,607.69, 6,910.51 and 1,320.05

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Solution

The fourth proportional to 4,607.69, 6,910.51 and 1,320.05 is: 1,979.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,607.69 : 6,910.51 = 1,320.05 : x
  2. Step 2: Convert to fraction form
    4,607.69/6,910.51 = 1,320.05/x
  3. Step 3: Cross multiply
    4,607.69x = 6,910.51 × 1,320.05
  4. Step 4: Simplify right side
    4,607.69x = 9,122,180.87
  5. Step 5: Solve for x
    x = 9,122,180.87/4,607.69
  6. Step 6: Final answer
    x = 1,979.78

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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.