Home / 3,137.36-4,326.54-1,878.21

Finding the Fourth Proportional to 3,137.36, 4,326.54 and 1,878.21

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Solution

The fourth proportional to 3,137.36, 4,326.54 and 1,878.21 is: 2,590.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.36 : 4,326.54 = 1,878.21 : x
  2. Step 2: Convert to fraction form
    3,137.36/4,326.54 = 1,878.21/x
  3. Step 3: Cross multiply
    3,137.36x = 4,326.54 × 1,878.21
  4. Step 4: Simplify right side
    3,137.36x = 8,126,150.69
  5. Step 5: Solve for x
    x = 8,126,150.69/3,137.36
  6. Step 6: Final answer
    x = 2,590.13

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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.