Home / 4,905.12-7,358.76-4,689.84

Finding the Fourth Proportional to 4,905.12, 7,358.76 and 4,689.84

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Solution

The fourth proportional to 4,905.12, 7,358.76 and 4,689.84 is: 7,035.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.12 : 7,358.76 = 4,689.84 : x
  2. Step 2: Convert to fraction form
    4,905.12/7,358.76 = 4,689.84/x
  3. Step 3: Cross multiply
    4,905.12x = 7,358.76 × 4,689.84
  4. Step 4: Simplify right side
    4,905.12x = 34,511,407.00
  5. Step 5: Solve for x
    x = 34,511,407.00/4,905.12
  6. Step 6: Final answer
    x = 7,035.79

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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.