Home / 5,628.42-8,442.86-2,118.06

Finding the Fourth Proportional to 5,628.42, 8,442.86 and 2,118.06

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Solution

The fourth proportional to 5,628.42, 8,442.86 and 2,118.06 is: 3,177.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,628.42 : 8,442.86 = 2,118.06 : x
  2. Step 2: Convert to fraction form
    5,628.42/8,442.86 = 2,118.06/x
  3. Step 3: Cross multiply
    5,628.42x = 8,442.86 × 2,118.06
  4. Step 4: Simplify right side
    5,628.42x = 17,882,484.05
  5. Step 5: Solve for x
    x = 17,882,484.05/5,628.42
  6. Step 6: Final answer
    x = 3,177.18

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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.