Home / 7,187.35-10,782.05-2,257.38

Finding the Fourth Proportional to 7,187.35, 10,782.05 and 2,257.38

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Solution

The fourth proportional to 7,187.35, 10,782.05 and 2,257.38 is: 3,386.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,187.35 : 10,782.05 = 2,257.38 : x
  2. Step 2: Convert to fraction form
    7,187.35/10,782.05 = 2,257.38/x
  3. Step 3: Cross multiply
    7,187.35x = 10,782.05 × 2,257.38
  4. Step 4: Simplify right side
    7,187.35x = 24,339,184.03
  5. Step 5: Solve for x
    x = 24,339,184.03/7,187.35
  6. Step 6: Final answer
    x = 3,386.39

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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.