Home / 5,373.68-7,415.64-3,015.80

Finding the Fourth Proportional to 5,373.68, 7,415.64 and 3,015.80

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Solution

The fourth proportional to 5,373.68, 7,415.64 and 3,015.80 is: 4,161.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,373.68 : 7,415.64 = 3,015.80 : x
  2. Step 2: Convert to fraction form
    5,373.68/7,415.64 = 3,015.80/x
  3. Step 3: Cross multiply
    5,373.68x = 7,415.64 × 3,015.80
  4. Step 4: Simplify right side
    5,373.68x = 22,364,087.11
  5. Step 5: Solve for x
    x = 22,364,087.11/5,373.68
  6. Step 6: Final answer
    x = 4,161.78

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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.