Home / 3,349.65-4,617.19-2,640.34

Finding the Fourth Proportional to 3,349.65, 4,617.19 and 2,640.34

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Solution

The fourth proportional to 3,349.65, 4,617.19 and 2,640.34 is: 3,639.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,349.65 : 4,617.19 = 2,640.34 : x
  2. Step 2: Convert to fraction form
    3,349.65/4,617.19 = 2,640.34/x
  3. Step 3: Cross multiply
    3,349.65x = 4,617.19 × 2,640.34
  4. Step 4: Simplify right side
    3,349.65x = 12,190,959.69
  5. Step 5: Solve for x
    x = 12,190,959.69/3,349.65
  6. Step 6: Final answer
    x = 3,639.47

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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.