Home / 7,238.89-10,854.28-2,855.17

Finding the Fourth Proportional to 7,238.89, 10,854.28 and 2,855.17

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Solution

The fourth proportional to 7,238.89, 10,854.28 and 2,855.17 is: 4,281.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,238.89 : 10,854.28 = 2,855.17 : x
  2. Step 2: Convert to fraction form
    7,238.89/10,854.28 = 2,855.17/x
  3. Step 3: Cross multiply
    7,238.89x = 10,854.28 × 2,855.17
  4. Step 4: Simplify right side
    7,238.89x = 30,990,814.63
  5. Step 5: Solve for x
    x = 30,990,814.63/7,238.89
  6. Step 6: Final answer
    x = 4,281.16

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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.