Home / 1,899.59-2,619.54-1,368.23

Finding the Fourth Proportional to 1,899.59, 2,619.54 and 1,368.23

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Solution

The fourth proportional to 1,899.59, 2,619.54 and 1,368.23 is: 1,886.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899.59 : 2,619.54 = 1,368.23 : x
  2. Step 2: Convert to fraction form
    1,899.59/2,619.54 = 1,368.23/x
  3. Step 3: Cross multiply
    1,899.59x = 2,619.54 × 1,368.23
  4. Step 4: Simplify right side
    1,899.59x = 3,584,120.12
  5. Step 5: Solve for x
    x = 3,584,120.12/1,899.59
  6. Step 6: Final answer
    x = 1,886.79

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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.