Home / 3,397.30-4,688.46-1,905.69

Finding the Fourth Proportional to 3,397.30, 4,688.46 and 1,905.69

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Solution

The fourth proportional to 3,397.30, 4,688.46 and 1,905.69 is: 2,629.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,397.30 : 4,688.46 = 1,905.69 : x
  2. Step 2: Convert to fraction form
    3,397.30/4,688.46 = 1,905.69/x
  3. Step 3: Cross multiply
    3,397.30x = 4,688.46 × 1,905.69
  4. Step 4: Simplify right side
    3,397.30x = 8,934,751.34
  5. Step 5: Solve for x
    x = 8,934,751.34/3,397.30
  6. Step 6: Final answer
    x = 2,629.96

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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.