Home / 5,853.69-8,776.43-2,155.43

Finding the Fourth Proportional to 5,853.69, 8,776.43 and 2,155.43

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Solution

The fourth proportional to 5,853.69, 8,776.43 and 2,155.43 is: 3,231.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,853.69 : 8,776.43 = 2,155.43 : x
  2. Step 2: Convert to fraction form
    5,853.69/8,776.43 = 2,155.43/x
  3. Step 3: Cross multiply
    5,853.69x = 8,776.43 × 2,155.43
  4. Step 4: Simplify right side
    5,853.69x = 18,916,980.51
  5. Step 5: Solve for x
    x = 18,916,980.51/5,853.69
  6. Step 6: Final answer
    x = 3,231.63

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1.5x scale

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.