Home / 1,910.68-2,865.91-612.05

Finding the Fourth Proportional to 1,910.68, 2,865.91 and 612.05

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Solution

The fourth proportional to 1,910.68, 2,865.91 and 612.05 is: 918.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,910.68 : 2,865.91 = 612.05 : x
  2. Step 2: Convert to fraction form
    1,910.68/2,865.91 = 612.05/x
  3. Step 3: Cross multiply
    1,910.68x = 2,865.91 × 612.05
  4. Step 4: Simplify right side
    1,910.68x = 1,754,080.22
  5. Step 5: Solve for x
    x = 1,754,080.22/1,910.68
  6. Step 6: Final answer
    x = 918.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.