Home / 3,111.85-4,666.96-1,031.23

Finding the Fourth Proportional to 3,111.85, 4,666.96 and 1,031.23

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Solution

The fourth proportional to 3,111.85, 4,666.96 and 1,031.23 is: 1,546.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.85 : 4,666.96 = 1,031.23 : x
  2. Step 2: Convert to fraction form
    3,111.85/4,666.96 = 1,031.23/x
  3. Step 3: Cross multiply
    3,111.85x = 4,666.96 × 1,031.23
  4. Step 4: Simplify right side
    3,111.85x = 4,812,709.16
  5. Step 5: Solve for x
    x = 4,812,709.16/3,111.85
  6. Step 6: Final answer
    x = 1,546.57

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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.