Home / 2,056.36-2,837.56-1,217.40

Finding the Fourth Proportional to 2,056.36, 2,837.56 and 1,217.40

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Solution

The fourth proportional to 2,056.36, 2,837.56 and 1,217.40 is: 1,679.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,056.36 : 2,837.56 = 1,217.40 : x
  2. Step 2: Convert to fraction form
    2,056.36/2,837.56 = 1,217.40/x
  3. Step 3: Cross multiply
    2,056.36x = 2,837.56 × 1,217.40
  4. Step 4: Simplify right side
    2,056.36x = 3,454,445.54
  5. Step 5: Solve for x
    x = 3,454,445.54/2,056.36
  6. Step 6: Final answer
    x = 1,679.88

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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.