Home / 2,840.49-4,262.55-1,378.84

Finding the Fourth Proportional to 2,840.49, 4,262.55 and 1,378.84

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Solution

The fourth proportional to 2,840.49, 4,262.55 and 1,378.84 is: 2,069.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.49 : 4,262.55 = 1,378.84 : x
  2. Step 2: Convert to fraction form
    2,840.49/4,262.55 = 1,378.84/x
  3. Step 3: Cross multiply
    2,840.49x = 4,262.55 × 1,378.84
  4. Step 4: Simplify right side
    2,840.49x = 5,877,374.44
  5. Step 5: Solve for x
    x = 5,877,374.44/2,840.49
  6. Step 6: Final answer
    x = 2,069.14

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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.