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Finding the Fourth Proportional to 1,878.46, 2,817.76 and 562.23

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Solution

The fourth proportional to 1,878.46, 2,817.76 and 562.23 is: 843.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,878.46 : 2,817.76 = 562.23 : x
  2. Step 2: Convert to fraction form
    1,878.46/2,817.76 = 562.23/x
  3. Step 3: Cross multiply
    1,878.46x = 2,817.76 × 562.23
  4. Step 4: Simplify right side
    1,878.46x = 1,584,226.39
  5. Step 5: Solve for x
    x = 1,584,226.39/1,878.46
  6. Step 6: Final answer
    x = 843.37

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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.