Home / 2,351.21-3,244.79-1,343.21

Finding the Fourth Proportional to 2,351.21, 3,244.79 and 1,343.21

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Solution

The fourth proportional to 2,351.21, 3,244.79 and 1,343.21 is: 1,853.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351.21 : 3,244.79 = 1,343.21 : x
  2. Step 2: Convert to fraction form
    2,351.21/3,244.79 = 1,343.21/x
  3. Step 3: Cross multiply
    2,351.21x = 3,244.79 × 1,343.21
  4. Step 4: Simplify right side
    2,351.21x = 4,358,421.51
  5. Step 5: Solve for x
    x = 4,358,421.51/2,351.21
  6. Step 6: Final answer
    x = 1,853.70

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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.