Home / 1,675.68-2,314.38-1,115.19

Finding the Fourth Proportional to 1,675.68, 2,314.38 and 1,115.19

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Solution

The fourth proportional to 1,675.68, 2,314.38 and 1,115.19 is: 1,540.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675.68 : 2,314.38 = 1,115.19 : x
  2. Step 2: Convert to fraction form
    1,675.68/2,314.38 = 1,115.19/x
  3. Step 3: Cross multiply
    1,675.68x = 2,314.38 × 1,115.19
  4. Step 4: Simplify right side
    1,675.68x = 2,580,973.43
  5. Step 5: Solve for x
    x = 2,580,973.43/1,675.68
  6. Step 6: Final answer
    x = 1,540.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.