Home / 7,103.70-10,643.76-4,321.92

Finding the Fourth Proportional to 7,103.70, 10,643.76 and 4,321.92

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Solution

The fourth proportional to 7,103.70, 10,643.76 and 4,321.92 is: 6,475.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,103.70 : 10,643.76 = 4,321.92 : x
  2. Step 2: Convert to fraction form
    7,103.70/10,643.76 = 4,321.92/x
  3. Step 3: Cross multiply
    7,103.70x = 10,643.76 × 4,321.92
  4. Step 4: Simplify right side
    7,103.70x = 46,001,479.22
  5. Step 5: Solve for x
    x = 46,001,479.22/7,103.70
  6. Step 6: Final answer
    x = 6,475.71

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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.