Home / 3,481.65-5,207.90-2,785.46

Finding the Fourth Proportional to 3,481.65, 5,207.90 and 2,785.46

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Solution

The fourth proportional to 3,481.65, 5,207.90 and 2,785.46 is: 4,166.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.65 : 5,207.90 = 2,785.46 : x
  2. Step 2: Convert to fraction form
    3,481.65/5,207.90 = 2,785.46/x
  3. Step 3: Cross multiply
    3,481.65x = 5,207.90 × 2,785.46
  4. Step 4: Simplify right side
    3,481.65x = 14,506,357.17
  5. Step 5: Solve for x
    x = 14,506,357.17/3,481.65
  6. Step 6: Final answer
    x = 4,166.52

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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.