Home / 4,610.91-6,912.76-2,145.40

Finding the Fourth Proportional to 4,610.91, 6,912.76 and 2,145.40

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Solution

The fourth proportional to 4,610.91, 6,912.76 and 2,145.40 is: 3,216.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,610.91 : 6,912.76 = 2,145.40 : x
  2. Step 2: Convert to fraction form
    4,610.91/6,912.76 = 2,145.40/x
  3. Step 3: Cross multiply
    4,610.91x = 6,912.76 × 2,145.40
  4. Step 4: Simplify right side
    4,610.91x = 14,830,655.57
  5. Step 5: Solve for x
    x = 14,830,655.57/4,610.91
  6. Step 6: Final answer
    x = 3,216.43

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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.