Home / 3,478.86-5,217.75-1,013.16

Finding the Fourth Proportional to 3,478.86, 5,217.75 and 1,013.16

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Solution

The fourth proportional to 3,478.86, 5,217.75 and 1,013.16 is: 1,519.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.86 : 5,217.75 = 1,013.16 : x
  2. Step 2: Convert to fraction form
    3,478.86/5,217.75 = 1,013.16/x
  3. Step 3: Cross multiply
    3,478.86x = 5,217.75 × 1,013.16
  4. Step 4: Simplify right side
    3,478.86x = 5,286,415.59
  5. Step 5: Solve for x
    x = 5,286,415.59/3,478.86
  6. Step 6: Final answer
    x = 1,519.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.