Home / 7,921.10-11,883-2,725.76

Finding the Fourth Proportional to 7,921.10, 11,883 and 2,725.76

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Solution

The fourth proportional to 7,921.10, 11,883 and 2,725.76 is: 4,089.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.10 : 11,883 = 2,725.76 : x
  2. Step 2: Convert to fraction form
    7,921.10/11,883 = 2,725.76/x
  3. Step 3: Cross multiply
    7,921.10x = 11,883 × 2,725.76
  4. Step 4: Simplify right side
    7,921.10x = 32,390,206.08
  5. Step 5: Solve for x
    x = 32,390,206.08/7,921.10
  6. Step 6: Final answer
    x = 4,089.10

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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.