Home / 5,558.51-8,339.70-3,480.05

Finding the Fourth Proportional to 5,558.51, 8,339.70 and 3,480.05

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Solution

The fourth proportional to 5,558.51, 8,339.70 and 3,480.05 is: 5,221.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,558.51 : 8,339.70 = 3,480.05 : x
  2. Step 2: Convert to fraction form
    5,558.51/8,339.70 = 3,480.05/x
  3. Step 3: Cross multiply
    5,558.51x = 8,339.70 × 3,480.05
  4. Step 4: Simplify right side
    5,558.51x = 29,022,572.99
  5. Step 5: Solve for x
    x = 29,022,572.99/5,558.51
  6. Step 6: Final answer
    x = 5,221.29

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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.