Home / 1,878.84-2,814.57-1,227.60

Finding the Fourth Proportional to 1,878.84, 2,814.57 and 1,227.60

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Solution

The fourth proportional to 1,878.84, 2,814.57 and 1,227.60 is: 1,838.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,878.84 : 2,814.57 = 1,227.60 : x
  2. Step 2: Convert to fraction form
    1,878.84/2,814.57 = 1,227.60/x
  3. Step 3: Cross multiply
    1,878.84x = 2,814.57 × 1,227.60
  4. Step 4: Simplify right side
    1,878.84x = 3,455,166.13
  5. Step 5: Solve for x
    x = 3,455,166.13/1,878.84
  6. Step 6: Final answer
    x = 1,838.99

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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.