Home / 7,022.75-9,691.43-4,038.76

Finding the Fourth Proportional to 7,022.75, 9,691.43 and 4,038.76

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Solution

The fourth proportional to 7,022.75, 9,691.43 and 4,038.76 is: 5,573.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,022.75 : 9,691.43 = 4,038.76 : x
  2. Step 2: Convert to fraction form
    7,022.75/9,691.43 = 4,038.76/x
  3. Step 3: Cross multiply
    7,022.75x = 9,691.43 × 4,038.76
  4. Step 4: Simplify right side
    7,022.75x = 39,141,359.83
  5. Step 5: Solve for x
    x = 39,141,359.83/7,022.75
  6. Step 6: Final answer
    x = 5,573.51

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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.