Home / 4,761.19-7,141.88-1,429.57

Finding the Fourth Proportional to 4,761.19, 7,141.88 and 1,429.57

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Solution

The fourth proportional to 4,761.19, 7,141.88 and 1,429.57 is: 2,144.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,761.19 : 7,141.88 = 1,429.57 : x
  2. Step 2: Convert to fraction form
    4,761.19/7,141.88 = 1,429.57/x
  3. Step 3: Cross multiply
    4,761.19x = 7,141.88 × 1,429.57
  4. Step 4: Simplify right side
    4,761.19x = 10,209,817.39
  5. Step 5: Solve for x
    x = 10,209,817.39/4,761.19
  6. Step 6: Final answer
    x = 2,144.38

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1.5x scale

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.