Home / 5,808.45-8,015.65-3,155.86

Finding the Fourth Proportional to 5,808.45, 8,015.65 and 3,155.86

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Solution

The fourth proportional to 5,808.45, 8,015.65 and 3,155.86 is: 4,355.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,808.45 : 8,015.65 = 3,155.86 : x
  2. Step 2: Convert to fraction form
    5,808.45/8,015.65 = 3,155.86/x
  3. Step 3: Cross multiply
    5,808.45x = 8,015.65 × 3,155.86
  4. Step 4: Simplify right side
    5,808.45x = 25,296,269.21
  5. Step 5: Solve for x
    x = 25,296,269.21/5,808.45
  6. Step 6: Final answer
    x = 4,355.08

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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.