Home / 5,135.70-7,101.09-4,479.60

Finding the Fourth Proportional to 5,135.70, 7,101.09 and 4,479.60

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Solution

The fourth proportional to 5,135.70, 7,101.09 and 4,479.60 is: 6,193.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.70 : 7,101.09 = 4,479.60 : x
  2. Step 2: Convert to fraction form
    5,135.70/7,101.09 = 4,479.60/x
  3. Step 3: Cross multiply
    5,135.70x = 7,101.09 × 4,479.60
  4. Step 4: Simplify right side
    5,135.70x = 31,810,042.76
  5. Step 5: Solve for x
    x = 31,810,042.76/5,135.70
  6. Step 6: Final answer
    x = 6,193.91

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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.