Home / 2,453.42-3,385.80-1,405.48

Finding the Fourth Proportional to 2,453.42, 3,385.80 and 1,405.48

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Solution

The fourth proportional to 2,453.42, 3,385.80 and 1,405.48 is: 1,939.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,453.42 : 3,385.80 = 1,405.48 : x
  2. Step 2: Convert to fraction form
    2,453.42/3,385.80 = 1,405.48/x
  3. Step 3: Cross multiply
    2,453.42x = 3,385.80 × 1,405.48
  4. Step 4: Simplify right side
    2,453.42x = 4,758,674.18
  5. Step 5: Solve for x
    x = 4,758,674.18/2,453.42
  6. Step 6: Final answer
    x = 1,939.61

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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.