Home / 3,780.06-5,216.64-2,287.71

Finding the Fourth Proportional to 3,780.06, 5,216.64 and 2,287.71

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Solution

The fourth proportional to 3,780.06, 5,216.64 and 2,287.71 is: 3,157.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.06 : 5,216.64 = 2,287.71 : x
  2. Step 2: Convert to fraction form
    3,780.06/5,216.64 = 2,287.71/x
  3. Step 3: Cross multiply
    3,780.06x = 5,216.64 × 2,287.71
  4. Step 4: Simplify right side
    3,780.06x = 11,934,159.49
  5. Step 5: Solve for x
    x = 11,934,159.49/3,780.06
  6. Step 6: Final answer
    x = 3,157.13

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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.