Home / 6,185.12-8,535.36-3,390.56

Finding the Fourth Proportional to 6,185.12, 8,535.36 and 3,390.56

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Solution

The fourth proportional to 6,185.12, 8,535.36 and 3,390.56 is: 4,678.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,185.12 : 8,535.36 = 3,390.56 : x
  2. Step 2: Convert to fraction form
    6,185.12/8,535.36 = 3,390.56/x
  3. Step 3: Cross multiply
    6,185.12x = 8,535.36 × 3,390.56
  4. Step 4: Simplify right side
    6,185.12x = 28,939,650.20
  5. Step 5: Solve for x
    x = 28,939,650.20/6,185.12
  6. Step 6: Final answer
    x = 4,678.91

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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.