Home / 2,440.70-3,368.16-1,321.64

Finding the Fourth Proportional to 2,440.70, 3,368.16 and 1,321.64

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Solution

The fourth proportional to 2,440.70, 3,368.16 and 1,321.64 is: 1,823.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440.70 : 3,368.16 = 1,321.64 : x
  2. Step 2: Convert to fraction form
    2,440.70/3,368.16 = 1,321.64/x
  3. Step 3: Cross multiply
    2,440.70x = 3,368.16 × 1,321.64
  4. Step 4: Simplify right side
    2,440.70x = 4,451,494.98
  5. Step 5: Solve for x
    x = 4,451,494.98/2,440.70
  6. Step 6: Final answer
    x = 1,823.86

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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.