Home / 3,816.82-5,262.47-2,470.20

Finding the Fourth Proportional to 3,816.82, 5,262.47 and 2,470.20

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Solution

The fourth proportional to 3,816.82, 5,262.47 and 2,470.20 is: 3,405.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,816.82 : 5,262.47 = 2,470.20 : x
  2. Step 2: Convert to fraction form
    3,816.82/5,262.47 = 2,470.20/x
  3. Step 3: Cross multiply
    3,816.82x = 5,262.47 × 2,470.20
  4. Step 4: Simplify right side
    3,816.82x = 12,999,330.57
  5. Step 5: Solve for x
    x = 12,999,330.57/3,816.82
  6. Step 6: Final answer
    x = 3,405.80

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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.