Home / 3,146.48-4,721.34-1,758.98

Finding the Fourth Proportional to 3,146.48, 4,721.34 and 1,758.98

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Solution

The fourth proportional to 3,146.48, 4,721.34 and 1,758.98 is: 2,639.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.48 : 4,721.34 = 1,758.98 : x
  2. Step 2: Convert to fraction form
    3,146.48/4,721.34 = 1,758.98/x
  3. Step 3: Cross multiply
    3,146.48x = 4,721.34 × 1,758.98
  4. Step 4: Simplify right side
    3,146.48x = 8,304,742.63
  5. Step 5: Solve for x
    x = 8,304,742.63/3,146.48
  6. Step 6: Final answer
    x = 2,639.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.