Home / 3,306.32-4,562.70-1,980.35

Finding the Fourth Proportional to 3,306.32, 4,562.70 and 1,980.35

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Solution

The fourth proportional to 3,306.32, 4,562.70 and 1,980.35 is: 2,732.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,306.32 : 4,562.70 = 1,980.35 : x
  2. Step 2: Convert to fraction form
    3,306.32/4,562.70 = 1,980.35/x
  3. Step 3: Cross multiply
    3,306.32x = 4,562.70 × 1,980.35
  4. Step 4: Simplify right side
    3,306.32x = 9,035,742.95
  5. Step 5: Solve for x
    x = 9,035,742.95/3,306.32
  6. Step 6: Final answer
    x = 2,732.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.