Home / 4,311.96-5,942.75-3,130.98

Finding the Fourth Proportional to 4,311.96, 5,942.75 and 3,130.98

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Solution

The fourth proportional to 4,311.96, 5,942.75 and 3,130.98 is: 4,315.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311.96 : 5,942.75 = 3,130.98 : x
  2. Step 2: Convert to fraction form
    4,311.96/5,942.75 = 3,130.98/x
  3. Step 3: Cross multiply
    4,311.96x = 5,942.75 × 3,130.98
  4. Step 4: Simplify right side
    4,311.96x = 18,606,615.74
  5. Step 5: Solve for x
    x = 18,606,615.74/4,311.96
  6. Step 6: Final answer
    x = 4,315.12

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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.