Home / 7,275.71-10,040.55-4,131.92

Finding the Fourth Proportional to 7,275.71, 10,040.55 and 4,131.92

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Solution

The fourth proportional to 7,275.71, 10,040.55 and 4,131.92 is: 5,702.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,275.71 : 10,040.55 = 4,131.92 : x
  2. Step 2: Convert to fraction form
    7,275.71/10,040.55 = 4,131.92/x
  3. Step 3: Cross multiply
    7,275.71x = 10,040.55 × 4,131.92
  4. Step 4: Simplify right side
    7,275.71x = 41,486,749.36
  5. Step 5: Solve for x
    x = 41,486,749.36/7,275.71
  6. Step 6: Final answer
    x = 5,702.09

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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.