Home / 2,774.84-3,829.38-1,515.98

Finding the Fourth Proportional to 2,774.84, 3,829.38 and 1,515.98

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Solution

The fourth proportional to 2,774.84, 3,829.38 and 1,515.98 is: 2,092.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,774.84 : 3,829.38 = 1,515.98 : x
  2. Step 2: Convert to fraction form
    2,774.84/3,829.38 = 1,515.98/x
  3. Step 3: Cross multiply
    2,774.84x = 3,829.38 × 1,515.98
  4. Step 4: Simplify right side
    2,774.84x = 5,805,263.49
  5. Step 5: Solve for x
    x = 5,805,263.49/2,774.84
  6. Step 6: Final answer
    x = 2,092.11

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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.