Home / 3,111.30-4,666.95-1,163.10

Finding the Fourth Proportional to 3,111.30, 4,666.95 and 1,163.10

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Solution

The fourth proportional to 3,111.30, 4,666.95 and 1,163.10 is: 1,744.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.30 : 4,666.95 = 1,163.10 : x
  2. Step 2: Convert to fraction form
    3,111.30/4,666.95 = 1,163.10/x
  3. Step 3: Cross multiply
    3,111.30x = 4,666.95 × 1,163.10
  4. Step 4: Simplify right side
    3,111.30x = 5,428,129.55
  5. Step 5: Solve for x
    x = 5,428,129.55/3,111.30
  6. Step 6: Final answer
    x = 1,744.65

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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.