Home / 4,985.57-7,478.39-1,522.82

Finding the Fourth Proportional to 4,985.57, 7,478.39 and 1,522.82

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Solution

The fourth proportional to 4,985.57, 7,478.39 and 1,522.82 is: 2,284.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.57 : 7,478.39 = 1,522.82 : x
  2. Step 2: Convert to fraction form
    4,985.57/7,478.39 = 1,522.82/x
  3. Step 3: Cross multiply
    4,985.57x = 7,478.39 × 1,522.82
  4. Step 4: Simplify right side
    4,985.57x = 11,388,234.25
  5. Step 5: Solve for x
    x = 11,388,234.25/4,985.57
  6. Step 6: Final answer
    x = 2,284.24

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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.