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Finding the Fourth Proportional to 7,184.28, 9,913.89 and 4,040.25

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Solution

The fourth proportional to 7,184.28, 9,913.89 and 4,040.25 is: 5,575.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,184.28 : 9,913.89 = 4,040.25 : x
  2. Step 2: Convert to fraction form
    7,184.28/9,913.89 = 4,040.25/x
  3. Step 3: Cross multiply
    7,184.28x = 9,913.89 × 4,040.25
  4. Step 4: Simplify right side
    7,184.28x = 40,054,594.07
  5. Step 5: Solve for x
    x = 40,054,594.07/7,184.28
  6. Step 6: Final answer
    x = 5,575.31

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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.