Home / 1,512.08-2,255.14-1,386.32

Finding the Fourth Proportional to 1,512.08, 2,255.14 and 1,386.32

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Solution

The fourth proportional to 1,512.08, 2,255.14 and 1,386.32 is: 2,067.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.08 : 2,255.14 = 1,386.32 : x
  2. Step 2: Convert to fraction form
    1,512.08/2,255.14 = 1,386.32/x
  3. Step 3: Cross multiply
    1,512.08x = 2,255.14 × 1,386.32
  4. Step 4: Simplify right side
    1,512.08x = 3,126,345.68
  5. Step 5: Solve for x
    x = 3,126,345.68/1,512.08
  6. Step 6: Final answer
    x = 2,067.58

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1.5x scale

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.