Home / 3,520.35-5,280.60-1,055.22

Finding the Fourth Proportional to 3,520.35, 5,280.60 and 1,055.22

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Solution

The fourth proportional to 3,520.35, 5,280.60 and 1,055.22 is: 1,582.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.35 : 5,280.60 = 1,055.22 : x
  2. Step 2: Convert to fraction form
    3,520.35/5,280.60 = 1,055.22/x
  3. Step 3: Cross multiply
    3,520.35x = 5,280.60 × 1,055.22
  4. Step 4: Simplify right side
    3,520.35x = 5,572,194.73
  5. Step 5: Solve for x
    x = 5,572,194.73/3,520.35
  6. Step 6: Final answer
    x = 1,582.85

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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.