Home / 3,280.23-4,531.14-2,621.70

Finding the Fourth Proportional to 3,280.23, 4,531.14 and 2,621.70

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Solution

The fourth proportional to 3,280.23, 4,531.14 and 2,621.70 is: 3,621.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.23 : 4,531.14 = 2,621.70 : x
  2. Step 2: Convert to fraction form
    3,280.23/4,531.14 = 2,621.70/x
  3. Step 3: Cross multiply
    3,280.23x = 4,531.14 × 2,621.70
  4. Step 4: Simplify right side
    3,280.23x = 11,879,289.74
  5. Step 5: Solve for x
    x = 11,879,289.74/3,280.23
  6. Step 6: Final answer
    x = 3,621.48

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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.