Home / 7,905.29-11,856.12-2,975.43

Finding the Fourth Proportional to 7,905.29, 11,856.12 and 2,975.43

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Solution

The fourth proportional to 7,905.29, 11,856.12 and 2,975.43 is: 4,462.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,905.29 : 11,856.12 = 2,975.43 : x
  2. Step 2: Convert to fraction form
    7,905.29/11,856.12 = 2,975.43/x
  3. Step 3: Cross multiply
    7,905.29x = 11,856.12 × 2,975.43
  4. Step 4: Simplify right side
    7,905.29x = 35,277,047.69
  5. Step 5: Solve for x
    x = 35,277,047.69/7,905.29
  6. Step 6: Final answer
    x = 4,462.46

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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.