Home / 3,145.33-4,340.78-1,748.17

Finding the Fourth Proportional to 3,145.33, 4,340.78 and 1,748.17

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Solution

The fourth proportional to 3,145.33, 4,340.78 and 1,748.17 is: 2,412.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.33 : 4,340.78 = 1,748.17 : x
  2. Step 2: Convert to fraction form
    3,145.33/4,340.78 = 1,748.17/x
  3. Step 3: Cross multiply
    3,145.33x = 4,340.78 × 1,748.17
  4. Step 4: Simplify right side
    3,145.33x = 7,588,412.63
  5. Step 5: Solve for x
    x = 7,588,412.63/3,145.33
  6. Step 6: Final answer
    x = 2,412.60

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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.