Home / 1,578.25-2,365.27-1,211.24

Finding the Fourth Proportional to 1,578.25, 2,365.27 and 1,211.24

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Solution

The fourth proportional to 1,578.25, 2,365.27 and 1,211.24 is: 1,815.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578.25 : 2,365.27 = 1,211.24 : x
  2. Step 2: Convert to fraction form
    1,578.25/2,365.27 = 1,211.24/x
  3. Step 3: Cross multiply
    1,578.25x = 2,365.27 × 1,211.24
  4. Step 4: Simplify right side
    1,578.25x = 2,864,899.22
  5. Step 5: Solve for x
    x = 2,864,899.22/1,578.25
  6. Step 6: Final answer
    x = 1,815.24

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1.5x scale

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.