Home / 7,241.05-9,990.20-4,588.07

Finding the Fourth Proportional to 7,241.05, 9,990.20 and 4,588.07

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Solution

The fourth proportional to 7,241.05, 9,990.20 and 4,588.07 is: 6,329.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,241.05 : 9,990.20 = 4,588.07 : x
  2. Step 2: Convert to fraction form
    7,241.05/9,990.20 = 4,588.07/x
  3. Step 3: Cross multiply
    7,241.05x = 9,990.20 × 4,588.07
  4. Step 4: Simplify right side
    7,241.05x = 45,835,713.97
  5. Step 5: Solve for x
    x = 45,835,713.97/7,241.05
  6. Step 6: Final answer
    x = 6,329.99

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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.