Home / 1,926.39-2,890.35-627.87

Finding the Fourth Proportional to 1,926.39, 2,890.35 and 627.87

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Solution

The fourth proportional to 1,926.39, 2,890.35 and 627.87 is: 942.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926.39 : 2,890.35 = 627.87 : x
  2. Step 2: Convert to fraction form
    1,926.39/2,890.35 = 627.87/x
  3. Step 3: Cross multiply
    1,926.39x = 2,890.35 × 627.87
  4. Step 4: Simplify right side
    1,926.39x = 1,814,764.05
  5. Step 5: Solve for x
    x = 1,814,764.05/1,926.39
  6. Step 6: Final answer
    x = 942.05

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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.