Home / 5,319.93-7,980.34-1,622.19

Finding the Fourth Proportional to 5,319.93, 7,980.34 and 1,622.19

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Solution

The fourth proportional to 5,319.93, 7,980.34 and 1,622.19 is: 2,433.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319.93 : 7,980.34 = 1,622.19 : x
  2. Step 2: Convert to fraction form
    5,319.93/7,980.34 = 1,622.19/x
  3. Step 3: Cross multiply
    5,319.93x = 7,980.34 × 1,622.19
  4. Step 4: Simplify right side
    5,319.93x = 12,945,627.74
  5. Step 5: Solve for x
    x = 12,945,627.74/5,319.93
  6. Step 6: Final answer
    x = 2,433.42

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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.