Home / 2,056.58-2,837.76-1,311.17

Finding the Fourth Proportional to 2,056.58, 2,837.76 and 1,311.17

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Solution

The fourth proportional to 2,056.58, 2,837.76 and 1,311.17 is: 1,809.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,056.58 : 2,837.76 = 1,311.17 : x
  2. Step 2: Convert to fraction form
    2,056.58/2,837.76 = 1,311.17/x
  3. Step 3: Cross multiply
    2,056.58x = 2,837.76 × 1,311.17
  4. Step 4: Simplify right side
    2,056.58x = 3,720,785.78
  5. Step 5: Solve for x
    x = 3,720,785.78/2,056.58
  6. Step 6: Final answer
    x = 1,809.21

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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.