Home / 1,623.51-2,435.40-453.52

Finding the Fourth Proportional to 1,623.51, 2,435.40 and 453.52

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Solution

The fourth proportional to 1,623.51, 2,435.40 and 453.52 is: 680.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,623.51 : 2,435.40 = 453.52 : x
  2. Step 2: Convert to fraction form
    1,623.51/2,435.40 = 453.52/x
  3. Step 3: Cross multiply
    1,623.51x = 2,435.40 × 453.52
  4. Step 4: Simplify right side
    1,623.51x = 1,104,497.57
  5. Step 5: Solve for x
    x = 1,104,497.57/1,623.51
  6. Step 6: Final answer
    x = 680.32

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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.