Home / 2,453.44-3,385.65-1,405.30

Finding the Fourth Proportional to 2,453.44, 3,385.65 and 1,405.30

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Solution

The fourth proportional to 2,453.44, 3,385.65 and 1,405.30 is: 1,939.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,453.44 : 3,385.65 = 1,405.30 : x
  2. Step 2: Convert to fraction form
    2,453.44/3,385.65 = 1,405.30/x
  3. Step 3: Cross multiply
    2,453.44x = 3,385.65 × 1,405.30
  4. Step 4: Simplify right side
    2,453.44x = 4,757,853.95
  5. Step 5: Solve for x
    x = 4,757,853.95/2,453.44
  6. Step 6: Final answer
    x = 1,939.26

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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.