Home / 7,690.14-10,615.01-4,781.97

Finding the Fourth Proportional to 7,690.14, 10,615.01 and 4,781.97

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Solution

The fourth proportional to 7,690.14, 10,615.01 and 4,781.97 is: 6,600.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.14 : 10,615.01 = 4,781.97 : x
  2. Step 2: Convert to fraction form
    7,690.14/10,615.01 = 4,781.97/x
  3. Step 3: Cross multiply
    7,690.14x = 10,615.01 × 4,781.97
  4. Step 4: Simplify right side
    7,690.14x = 50,760,671.32
  5. Step 5: Solve for x
    x = 50,760,671.32/7,690.14
  6. Step 6: Final answer
    x = 6,600.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.