Home / 5,373.69-7,415.64-3,015.78

Finding the Fourth Proportional to 5,373.69, 7,415.64 and 3,015.78

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Solution

The fourth proportional to 5,373.69, 7,415.64 and 3,015.78 is: 4,161.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,373.69 : 7,415.64 = 3,015.78 : x
  2. Step 2: Convert to fraction form
    5,373.69/7,415.64 = 3,015.78/x
  3. Step 3: Cross multiply
    5,373.69x = 7,415.64 × 3,015.78
  4. Step 4: Simplify right side
    5,373.69x = 22,363,938.80
  5. Step 5: Solve for x
    x = 22,363,938.80/5,373.69
  6. Step 6: Final answer
    x = 4,161.75

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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.