Home / 2,120.32-2,923.84-1,373.44

Finding the Fourth Proportional to 2,120.32, 2,923.84 and 1,373.44

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Solution

The fourth proportional to 2,120.32, 2,923.84 and 1,373.44 is: 1,893.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120.32 : 2,923.84 = 1,373.44 : x
  2. Step 2: Convert to fraction form
    2,120.32/2,923.84 = 1,373.44/x
  3. Step 3: Cross multiply
    2,120.32x = 2,923.84 × 1,373.44
  4. Step 4: Simplify right side
    2,120.32x = 4,015,718.81
  5. Step 5: Solve for x
    x = 4,015,718.81/2,120.32
  6. Step 6: Final answer
    x = 1,893.92

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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.