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Finding the Fourth Proportional to 1,926.28, 2,889.72 and 627.45

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Solution

The fourth proportional to 1,926.28, 2,889.72 and 627.45 is: 941.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926.28 : 2,889.72 = 627.45 : x
  2. Step 2: Convert to fraction form
    1,926.28/2,889.72 = 627.45/x
  3. Step 3: Cross multiply
    1,926.28x = 2,889.72 × 627.45
  4. Step 4: Simplify right side
    1,926.28x = 1,813,154.81
  5. Step 5: Solve for x
    x = 1,813,154.81/1,926.28
  6. Step 6: Final answer
    x = 941.27

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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.