Home / 2,343.81-3,234.39-1,281.54

Finding the Fourth Proportional to 2,343.81, 3,234.39 and 1,281.54

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Solution

The fourth proportional to 2,343.81, 3,234.39 and 1,281.54 is: 1,768.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,343.81 : 3,234.39 = 1,281.54 : x
  2. Step 2: Convert to fraction form
    2,343.81/3,234.39 = 1,281.54/x
  3. Step 3: Cross multiply
    2,343.81x = 3,234.39 × 1,281.54
  4. Step 4: Simplify right side
    2,343.81x = 4,145,000.16
  5. Step 5: Solve for x
    x = 4,145,000.16/2,343.81
  6. Step 6: Final answer
    x = 1,768.49

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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.