Home / 5,678.22-8,518.59-2,215.50

Finding the Fourth Proportional to 5,678.22, 8,518.59 and 2,215.50

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Solution

The fourth proportional to 5,678.22, 8,518.59 and 2,215.50 is: 3,323.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.22 : 8,518.59 = 2,215.50 : x
  2. Step 2: Convert to fraction form
    5,678.22/8,518.59 = 2,215.50/x
  3. Step 3: Cross multiply
    5,678.22x = 8,518.59 × 2,215.50
  4. Step 4: Simplify right side
    5,678.22x = 18,872,936.15
  5. Step 5: Solve for x
    x = 18,872,936.15/5,678.22
  6. Step 6: Final answer
    x = 3,323.74

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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.