Home / 2,960.64-4,080.96-1,910.40

Finding the Fourth Proportional to 2,960.64, 4,080.96 and 1,910.40

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Solution

The fourth proportional to 2,960.64, 4,080.96 and 1,910.40 is: 2,633.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,960.64 : 4,080.96 = 1,910.40 : x
  2. Step 2: Convert to fraction form
    2,960.64/4,080.96 = 1,910.40/x
  3. Step 3: Cross multiply
    2,960.64x = 4,080.96 × 1,910.40
  4. Step 4: Simplify right side
    2,960.64x = 7,796,265.98
  5. Step 5: Solve for x
    x = 7,796,265.98/2,960.64
  6. Step 6: Final answer
    x = 2,633.30

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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.