Home / 1,578.08-2,356.36-1,412.48

Finding the Fourth Proportional to 1,578.08, 2,356.36 and 1,412.48

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Solution

The fourth proportional to 1,578.08, 2,356.36 and 1,412.48 is: 2,109.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578.08 : 2,356.36 = 1,412.48 : x
  2. Step 2: Convert to fraction form
    1,578.08/2,356.36 = 1,412.48/x
  3. Step 3: Cross multiply
    1,578.08x = 2,356.36 × 1,412.48
  4. Step 4: Simplify right side
    1,578.08x = 3,328,311.37
  5. Step 5: Solve for x
    x = 3,328,311.37/1,578.08
  6. Step 6: Final answer
    x = 2,109.09

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.