Home / 1,754.33-2,421.14-1,311.46

Finding the Fourth Proportional to 1,754.33, 2,421.14 and 1,311.46

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Solution

The fourth proportional to 1,754.33, 2,421.14 and 1,311.46 is: 1,809.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,754.33 : 2,421.14 = 1,311.46 : x
  2. Step 2: Convert to fraction form
    1,754.33/2,421.14 = 1,311.46/x
  3. Step 3: Cross multiply
    1,754.33x = 2,421.14 × 1,311.46
  4. Step 4: Simplify right side
    1,754.33x = 3,175,220.57
  5. Step 5: Solve for x
    x = 3,175,220.57/1,754.33
  6. Step 6: Final answer
    x = 1,809.94

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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.