Home / 7,182.08-9,912.30-4,038.56

Finding the Fourth Proportional to 7,182.08, 9,912.30 and 4,038.56

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Solution

The fourth proportional to 7,182.08, 9,912.30 and 4,038.56 is: 5,573.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182.08 : 9,912.30 = 4,038.56 : x
  2. Step 2: Convert to fraction form
    7,182.08/9,912.30 = 4,038.56/x
  3. Step 3: Cross multiply
    7,182.08x = 9,912.30 × 4,038.56
  4. Step 4: Simplify right side
    7,182.08x = 40,031,418.29
  5. Step 5: Solve for x
    x = 40,031,418.29/7,182.08
  6. Step 6: Final answer
    x = 5,573.79

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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.