Home / 4,741.70-7,112.55-4,231.40

Finding the Fourth Proportional to 4,741.70, 7,112.55 and 4,231.40

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Solution

The fourth proportional to 4,741.70, 7,112.55 and 4,231.40 is: 6,347.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,741.70 : 7,112.55 = 4,231.40 : x
  2. Step 2: Convert to fraction form
    4,741.70/7,112.55 = 4,231.40/x
  3. Step 3: Cross multiply
    4,741.70x = 7,112.55 × 4,231.40
  4. Step 4: Simplify right side
    4,741.70x = 30,096,044.07
  5. Step 5: Solve for x
    x = 30,096,044.07/4,741.70
  6. Step 6: Final answer
    x = 6,347.10

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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.