Home / 1,578.29-2,376.69-1,375.23

Finding the Fourth Proportional to 1,578.29, 2,376.69 and 1,375.23

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Solution

The fourth proportional to 1,578.29, 2,376.69 and 1,375.23 is: 2,070.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578.29 : 2,376.69 = 1,375.23 : x
  2. Step 2: Convert to fraction form
    1,578.29/2,376.69 = 1,375.23/x
  3. Step 3: Cross multiply
    1,578.29x = 2,376.69 × 1,375.23
  4. Step 4: Simplify right side
    1,578.29x = 3,268,493.51
  5. Step 5: Solve for x
    x = 3,268,493.51/1,578.29
  6. Step 6: Final answer
    x = 2,070.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.