Home / 4,199.60-6,300.88-2,640.72

Finding the Fourth Proportional to 4,199.60, 6,300.88 and 2,640.72

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Solution

The fourth proportional to 4,199.60, 6,300.88 and 2,640.72 is: 3,962.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,199.60 : 6,300.88 = 2,640.72 : x
  2. Step 2: Convert to fraction form
    4,199.60/6,300.88 = 2,640.72/x
  3. Step 3: Cross multiply
    4,199.60x = 6,300.88 × 2,640.72
  4. Step 4: Simplify right side
    4,199.60x = 16,638,859.83
  5. Step 5: Solve for x
    x = 16,638,859.83/4,199.60
  6. Step 6: Final answer
    x = 3,962.01

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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.