Home / 5,319.57-7,980.47-1,622.09

Finding the Fourth Proportional to 5,319.57, 7,980.47 and 1,622.09

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Solution

The fourth proportional to 5,319.57, 7,980.47 and 1,622.09 is: 2,433.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319.57 : 7,980.47 = 1,622.09 : x
  2. Step 2: Convert to fraction form
    5,319.57/7,980.47 = 1,622.09/x
  3. Step 3: Cross multiply
    5,319.57x = 7,980.47 × 1,622.09
  4. Step 4: Simplify right side
    5,319.57x = 12,944,992.57
  5. Step 5: Solve for x
    x = 12,944,992.57/5,319.57
  6. Step 6: Final answer
    x = 2,433.47

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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.