Home / 3,070.26-4,220.61-2,643.30

Finding the Fourth Proportional to 3,070.26, 4,220.61 and 2,643.30

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Solution

The fourth proportional to 3,070.26, 4,220.61 and 2,643.30 is: 3,633.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,070.26 : 4,220.61 = 2,643.30 : x
  2. Step 2: Convert to fraction form
    3,070.26/4,220.61 = 2,643.30/x
  3. Step 3: Cross multiply
    3,070.26x = 4,220.61 × 2,643.30
  4. Step 4: Simplify right side
    3,070.26x = 11,156,338.41
  5. Step 5: Solve for x
    x = 11,156,338.41/3,070.26
  6. Step 6: Final answer
    x = 3,633.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.