Home / 3,112.10-4,295.43-1,934.06

Finding the Fourth Proportional to 3,112.10, 4,295.43 and 1,934.06

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Solution

The fourth proportional to 3,112.10, 4,295.43 and 1,934.06 is: 2,669.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.10 : 4,295.43 = 1,934.06 : x
  2. Step 2: Convert to fraction form
    3,112.10/4,295.43 = 1,934.06/x
  3. Step 3: Cross multiply
    3,112.10x = 4,295.43 × 1,934.06
  4. Step 4: Simplify right side
    3,112.10x = 8,307,619.35
  5. Step 5: Solve for x
    x = 8,307,619.35/3,112.10
  6. Step 6: Final answer
    x = 2,669.46

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Half scale
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Double scale
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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.