Home / 3,520.50-5,280.83-1,330.26

Finding the Fourth Proportional to 3,520.50, 5,280.83 and 1,330.26

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Solution

The fourth proportional to 3,520.50, 5,280.83 and 1,330.26 is: 1,995.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.50 : 5,280.83 = 1,330.26 : x
  2. Step 2: Convert to fraction form
    3,520.50/5,280.83 = 1,330.26/x
  3. Step 3: Cross multiply
    3,520.50x = 5,280.83 × 1,330.26
  4. Step 4: Simplify right side
    3,520.50x = 7,024,870.26
  5. Step 5: Solve for x
    x = 7,024,870.26/3,520.50
  6. Step 6: Final answer
    x = 1,995.42

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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.