Home / 2,056.32-2,840.15-1,392.02

Finding the Fourth Proportional to 2,056.32, 2,840.15 and 1,392.02

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Solution

The fourth proportional to 2,056.32, 2,840.15 and 1,392.02 is: 1,922.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,056.32 : 2,840.15 = 1,392.02 : x
  2. Step 2: Convert to fraction form
    2,056.32/2,840.15 = 1,392.02/x
  3. Step 3: Cross multiply
    2,056.32x = 2,840.15 × 1,392.02
  4. Step 4: Simplify right side
    2,056.32x = 3,953,524.44
  5. Step 5: Solve for x
    x = 3,953,524.44/2,056.32
  6. Step 6: Final answer
    x = 1,922.62

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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.