Home / 5,129.70-7,076.46-4,420.32

Finding the Fourth Proportional to 5,129.70, 7,076.46 and 4,420.32

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Solution

The fourth proportional to 5,129.70, 7,076.46 and 4,420.32 is: 6,097.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.70 : 7,076.46 = 4,420.32 : x
  2. Step 2: Convert to fraction form
    5,129.70/7,076.46 = 4,420.32/x
  3. Step 3: Cross multiply
    5,129.70x = 7,076.46 × 4,420.32
  4. Step 4: Simplify right side
    5,129.70x = 31,280,217.67
  5. Step 5: Solve for x
    x = 31,280,217.67/5,129.70
  6. Step 6: Final answer
    x = 6,097.86

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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.