Home / 4,239.12-6,360.72-2,187.12

Finding the Fourth Proportional to 4,239.12, 6,360.72 and 2,187.12

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Solution

The fourth proportional to 4,239.12, 6,360.72 and 2,187.12 is: 3,281.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,239.12 : 6,360.72 = 2,187.12 : x
  2. Step 2: Convert to fraction form
    4,239.12/6,360.72 = 2,187.12/x
  3. Step 3: Cross multiply
    4,239.12x = 6,360.72 × 2,187.12
  4. Step 4: Simplify right side
    4,239.12x = 13,911,657.93
  5. Step 5: Solve for x
    x = 13,911,657.93/4,239.12
  6. Step 6: Final answer
    x = 3,281.73

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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.