Home / 7,241.36-9,990.15-4,406.46

Finding the Fourth Proportional to 7,241.36, 9,990.15 and 4,406.46

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Solution

The fourth proportional to 7,241.36, 9,990.15 and 4,406.46 is: 6,079.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,241.36 : 9,990.15 = 4,406.46 : x
  2. Step 2: Convert to fraction form
    7,241.36/9,990.15 = 4,406.46/x
  3. Step 3: Cross multiply
    7,241.36x = 9,990.15 × 4,406.46
  4. Step 4: Simplify right side
    7,241.36x = 44,021,218.82
  5. Step 5: Solve for x
    x = 44,021,218.82/7,241.36
  6. Step 6: Final answer
    x = 6,079.14

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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.