Home / 2,840.56-4,262.67-1,378.92

Finding the Fourth Proportional to 2,840.56, 4,262.67 and 1,378.92

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Solution

The fourth proportional to 2,840.56, 4,262.67 and 1,378.92 is: 2,069.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.56 : 4,262.67 = 1,378.92 : x
  2. Step 2: Convert to fraction form
    2,840.56/4,262.67 = 1,378.92/x
  3. Step 3: Cross multiply
    2,840.56x = 4,262.67 × 1,378.92
  4. Step 4: Simplify right side
    2,840.56x = 5,877,864.59
  5. Step 5: Solve for x
    x = 5,877,864.59/2,840.56
  6. Step 6: Final answer
    x = 2,069.26

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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.