Home / 3,428.42-4,726.80-2,798.30

Finding the Fourth Proportional to 3,428.42, 4,726.80 and 2,798.30

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Solution

The fourth proportional to 3,428.42, 4,726.80 and 2,798.30 is: 3,858.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.42 : 4,726.80 = 2,798.30 : x
  2. Step 2: Convert to fraction form
    3,428.42/4,726.80 = 2,798.30/x
  3. Step 3: Cross multiply
    3,428.42x = 4,726.80 × 2,798.30
  4. Step 4: Simplify right side
    3,428.42x = 13,227,004.44
  5. Step 5: Solve for x
    x = 13,227,004.44/3,428.42
  6. Step 6: Final answer
    x = 3,858.05

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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.