Home / 5,905.83-8,815.55-5,205.23

Finding the Fourth Proportional to 5,905.83, 8,815.55 and 5,205.23

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Solution

The fourth proportional to 5,905.83, 8,815.55 and 5,205.23 is: 7,769.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,905.83 : 8,815.55 = 5,205.23 : x
  2. Step 2: Convert to fraction form
    5,905.83/8,815.55 = 5,205.23/x
  3. Step 3: Cross multiply
    5,905.83x = 8,815.55 × 5,205.23
  4. Step 4: Simplify right side
    5,905.83x = 45,886,919.26
  5. Step 5: Solve for x
    x = 45,886,919.26/5,905.83
  6. Step 6: Final answer
    x = 7,769.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.