Home / 7,220.64-9,963.75-4,076.22

Finding the Fourth Proportional to 7,220.64, 9,963.75 and 4,076.22

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Solution

The fourth proportional to 7,220.64, 9,963.75 and 4,076.22 is: 5,624.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.64 : 9,963.75 = 4,076.22 : x
  2. Step 2: Convert to fraction form
    7,220.64/9,963.75 = 4,076.22/x
  3. Step 3: Cross multiply
    7,220.64x = 9,963.75 × 4,076.22
  4. Step 4: Simplify right side
    7,220.64x = 40,614,437.03
  5. Step 5: Solve for x
    x = 40,614,437.03/7,220.64
  6. Step 6: Final answer
    x = 5,624.77

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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.