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Finding the Fourth Proportional to 7,228.71, 9,975.69 and 4,434.21

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Solution

The fourth proportional to 7,228.71, 9,975.69 and 4,434.21 is: 6,119.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,228.71 : 9,975.69 = 4,434.21 : x
  2. Step 2: Convert to fraction form
    7,228.71/9,975.69 = 4,434.21/x
  3. Step 3: Cross multiply
    7,228.71x = 9,975.69 × 4,434.21
  4. Step 4: Simplify right side
    7,228.71x = 44,234,304.35
  5. Step 5: Solve for x
    x = 44,234,304.35/7,228.71
  6. Step 6: Final answer
    x = 6,119.25

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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.