Home / 7,215.20-10,817.52-2,282.08

Finding the Fourth Proportional to 7,215.20, 10,817.52 and 2,282.08

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Solution

The fourth proportional to 7,215.20, 10,817.52 and 2,282.08 is: 3,421.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.20 : 10,817.52 = 2,282.08 : x
  2. Step 2: Convert to fraction form
    7,215.20/10,817.52 = 2,282.08/x
  3. Step 3: Cross multiply
    7,215.20x = 10,817.52 × 2,282.08
  4. Step 4: Simplify right side
    7,215.20x = 24,686,446.04
  5. Step 5: Solve for x
    x = 24,686,446.04/7,215.20
  6. Step 6: Final answer
    x = 3,421.45

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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.