Home / 2,351.18-3,243.70-1,642.84

Finding the Fourth Proportional to 2,351.18, 3,243.70 and 1,642.84

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Solution

The fourth proportional to 2,351.18, 3,243.70 and 1,642.84 is: 2,266.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351.18 : 3,243.70 = 1,642.84 : x
  2. Step 2: Convert to fraction form
    2,351.18/3,243.70 = 1,642.84/x
  3. Step 3: Cross multiply
    2,351.18x = 3,243.70 × 1,642.84
  4. Step 4: Simplify right side
    2,351.18x = 5,328,880.11
  5. Step 5: Solve for x
    x = 5,328,880.11/2,351.18
  6. Step 6: Final answer
    x = 2,266.47

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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.