Home / 2,910.63-4,015.41-1,940.76

Finding the Fourth Proportional to 2,910.63, 4,015.41 and 1,940.76

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Solution

The fourth proportional to 2,910.63, 4,015.41 and 1,940.76 is: 2,677.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.63 : 4,015.41 = 1,940.76 : x
  2. Step 2: Convert to fraction form
    2,910.63/4,015.41 = 1,940.76/x
  3. Step 3: Cross multiply
    2,910.63x = 4,015.41 × 1,940.76
  4. Step 4: Simplify right side
    2,910.63x = 7,792,939.83
  5. Step 5: Solve for x
    x = 7,792,939.83/2,910.63
  6. Step 6: Final answer
    x = 2,677.40

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Find fourth proportional to 1,455.32, 2,007.70 and 970.38
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.