Home / 3,880.62-5,820.99-2,160.18

Finding the Fourth Proportional to 3,880.62, 5,820.99 and 2,160.18

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Solution

The fourth proportional to 3,880.62, 5,820.99 and 2,160.18 is: 3,240.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.62 : 5,820.99 = 2,160.18 : x
  2. Step 2: Convert to fraction form
    3,880.62/5,820.99 = 2,160.18/x
  3. Step 3: Cross multiply
    3,880.62x = 5,820.99 × 2,160.18
  4. Step 4: Simplify right side
    3,880.62x = 12,574,386.18
  5. Step 5: Solve for x
    x = 12,574,386.18/3,880.62
  6. Step 6: Final answer
    x = 3,240.30

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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.