Home / 4,211.60-6,320.84-2,980.19

Finding the Fourth Proportional to 4,211.60, 6,320.84 and 2,980.19

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Solution

The fourth proportional to 4,211.60, 6,320.84 and 2,980.19 is: 4,472.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,211.60 : 6,320.84 = 2,980.19 : x
  2. Step 2: Convert to fraction form
    4,211.60/6,320.84 = 2,980.19/x
  3. Step 3: Cross multiply
    4,211.60x = 6,320.84 × 2,980.19
  4. Step 4: Simplify right side
    4,211.60x = 18,837,305.06
  5. Step 5: Solve for x
    x = 18,837,305.06/4,211.60
  6. Step 6: Final answer
    x = 4,472.72

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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.