Home / 7,833-11,749.38-3,154.20

Finding the Fourth Proportional to 7,833, 11,749.38 and 3,154.20

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Solution

The fourth proportional to 7,833, 11,749.38 and 3,154.20 is: 4,731.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,833 : 11,749.38 = 3,154.20 : x
  2. Step 2: Convert to fraction form
    7,833/11,749.38 = 3,154.20/x
  3. Step 3: Cross multiply
    7,833x = 11,749.38 × 3,154.20
  4. Step 4: Simplify right side
    7,833x = 37,059,894.40
  5. Step 5: Solve for x
    x = 37,059,894.40/7,833
  6. Step 6: Final answer
    x = 4,731.25

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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.