Home / 3,113.65-4,302.30-2,489.33

Finding the Fourth Proportional to 3,113.65, 4,302.30 and 2,489.33

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Solution

The fourth proportional to 3,113.65, 4,302.30 and 2,489.33 is: 3,439.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.65 : 4,302.30 = 2,489.33 : x
  2. Step 2: Convert to fraction form
    3,113.65/4,302.30 = 2,489.33/x
  3. Step 3: Cross multiply
    3,113.65x = 4,302.30 × 2,489.33
  4. Step 4: Simplify right side
    3,113.65x = 10,709,844.46
  5. Step 5: Solve for x
    x = 10,709,844.46/3,113.65
  6. Step 6: Final answer
    x = 3,439.64

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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.