Home / 7,913.45-10,922.38-4,558.21

Finding the Fourth Proportional to 7,913.45, 10,922.38 and 4,558.21

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Solution

The fourth proportional to 7,913.45, 10,922.38 and 4,558.21 is: 6,291.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.45 : 10,922.38 = 4,558.21 : x
  2. Step 2: Convert to fraction form
    7,913.45/10,922.38 = 4,558.21/x
  3. Step 3: Cross multiply
    7,913.45x = 10,922.38 × 4,558.21
  4. Step 4: Simplify right side
    7,913.45x = 49,786,463.04
  5. Step 5: Solve for x
    x = 49,786,463.04/7,913.45
  6. Step 6: Final answer
    x = 6,291.37

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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.