Home / 3,805.77-5,250.39-2,389.01

Finding the Fourth Proportional to 3,805.77, 5,250.39 and 2,389.01

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Solution

The fourth proportional to 3,805.77, 5,250.39 and 2,389.01 is: 3,295.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,805.77 : 5,250.39 = 2,389.01 : x
  2. Step 2: Convert to fraction form
    3,805.77/5,250.39 = 2,389.01/x
  3. Step 3: Cross multiply
    3,805.77x = 5,250.39 × 2,389.01
  4. Step 4: Simplify right side
    3,805.77x = 12,543,207.96
  5. Step 5: Solve for x
    x = 12,543,207.96/3,805.77
  6. Step 6: Final answer
    x = 3,295.84

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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.