Home / 5,808.40-8,015.56-3,155.80

Finding the Fourth Proportional to 5,808.40, 8,015.56 and 3,155.80

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Solution

The fourth proportional to 5,808.40, 8,015.56 and 3,155.80 is: 4,354.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,808.40 : 8,015.56 = 3,155.80 : x
  2. Step 2: Convert to fraction form
    5,808.40/8,015.56 = 3,155.80/x
  3. Step 3: Cross multiply
    5,808.40x = 8,015.56 × 3,155.80
  4. Step 4: Simplify right side
    5,808.40x = 25,295,504.25
  5. Step 5: Solve for x
    x = 25,295,504.25/5,808.40
  6. Step 6: Final answer
    x = 4,354.99

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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.