Home / 3,340.56-4,613.40-2,820.72

Finding the Fourth Proportional to 3,340.56, 4,613.40 and 2,820.72

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Solution

The fourth proportional to 3,340.56, 4,613.40 and 2,820.72 is: 3,895.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,340.56 : 4,613.40 = 2,820.72 : x
  2. Step 2: Convert to fraction form
    3,340.56/4,613.40 = 2,820.72/x
  3. Step 3: Cross multiply
    3,340.56x = 4,613.40 × 2,820.72
  4. Step 4: Simplify right side
    3,340.56x = 13,013,109.65
  5. Step 5: Solve for x
    x = 13,013,109.65/3,340.56
  6. Step 6: Final answer
    x = 3,895.49

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