Home / 1,578.42-2,363.58-1,425.33

Finding the Fourth Proportional to 1,578.42, 2,363.58 and 1,425.33

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Solution

The fourth proportional to 1,578.42, 2,363.58 and 1,425.33 is: 2,134.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578.42 : 2,363.58 = 1,425.33 : x
  2. Step 2: Convert to fraction form
    1,578.42/2,363.58 = 1,425.33/x
  3. Step 3: Cross multiply
    1,578.42x = 2,363.58 × 1,425.33
  4. Step 4: Simplify right side
    1,578.42x = 3,368,881.48
  5. Step 5: Solve for x
    x = 3,368,881.48/1,578.42
  6. Step 6: Final answer
    x = 2,134.34

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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.