Home / 7,120.04-10,678.22-2,188.52

Finding the Fourth Proportional to 7,120.04, 10,678.22 and 2,188.52

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Solution

The fourth proportional to 7,120.04, 10,678.22 and 2,188.52 is: 3,282.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.04 : 10,678.22 = 2,188.52 : x
  2. Step 2: Convert to fraction form
    7,120.04/10,678.22 = 2,188.52/x
  3. Step 3: Cross multiply
    7,120.04x = 10,678.22 × 2,188.52
  4. Step 4: Simplify right side
    7,120.04x = 23,369,498.03
  5. Step 5: Solve for x
    x = 23,369,498.03/7,120.04
  6. Step 6: Final answer
    x = 3,282.21

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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.