Home / 3,240.75-4,857.02-2,070.30

Finding the Fourth Proportional to 3,240.75, 4,857.02 and 2,070.30

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Solution

The fourth proportional to 3,240.75, 4,857.02 and 2,070.30 is: 3,102.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.75 : 4,857.02 = 2,070.30 : x
  2. Step 2: Convert to fraction form
    3,240.75/4,857.02 = 2,070.30/x
  3. Step 3: Cross multiply
    3,240.75x = 4,857.02 × 2,070.30
  4. Step 4: Simplify right side
    3,240.75x = 10,055,467.70
  5. Step 5: Solve for x
    x = 10,055,467.70/3,240.75
  6. Step 6: Final answer
    x = 3,102.82

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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.