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Finding the Fourth Proportional to 4,892.73, 7,340.19 and 1,430.25

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Solution

The fourth proportional to 4,892.73, 7,340.19 and 1,430.25 is: 2,145.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,892.73 : 7,340.19 = 1,430.25 : x
  2. Step 2: Convert to fraction form
    4,892.73/7,340.19 = 1,430.25/x
  3. Step 3: Cross multiply
    4,892.73x = 7,340.19 × 1,430.25
  4. Step 4: Simplify right side
    4,892.73x = 10,498,306.75
  5. Step 5: Solve for x
    x = 10,498,306.75/4,892.73
  6. Step 6: Final answer
    x = 2,145.70

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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.