Home / 7,131.05-9,845.70-4,443.35

Finding the Fourth Proportional to 7,131.05, 9,845.70 and 4,443.35

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Solution

The fourth proportional to 7,131.05, 9,845.70 and 4,443.35 is: 6,134.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.05 : 9,845.70 = 4,443.35 : x
  2. Step 2: Convert to fraction form
    7,131.05/9,845.70 = 4,443.35/x
  3. Step 3: Cross multiply
    7,131.05x = 9,845.70 × 4,443.35
  4. Step 4: Simplify right side
    7,131.05x = 43,747,915.71
  5. Step 5: Solve for x
    x = 43,747,915.71/7,131.05
  6. Step 6: Final answer
    x = 6,134.85

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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.