Home / 7,812.82-10,781.70-4,276.06

Finding the Fourth Proportional to 7,812.82, 10,781.70 and 4,276.06

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Solution

The fourth proportional to 7,812.82, 10,781.70 and 4,276.06 is: 5,900.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,812.82 : 10,781.70 = 4,276.06 : x
  2. Step 2: Convert to fraction form
    7,812.82/10,781.70 = 4,276.06/x
  3. Step 3: Cross multiply
    7,812.82x = 10,781.70 × 4,276.06
  4. Step 4: Simplify right side
    7,812.82x = 46,103,196.10
  5. Step 5: Solve for x
    x = 46,103,196.10/7,812.82
  6. Step 6: Final answer
    x = 5,900.97

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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.