Home / 2,170.40-3,256.08-1,144.16

Finding the Fourth Proportional to 2,170.40, 3,256.08 and 1,144.16

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Solution

The fourth proportional to 2,170.40, 3,256.08 and 1,144.16 is: 1,716.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.40 : 3,256.08 = 1,144.16 : x
  2. Step 2: Convert to fraction form
    2,170.40/3,256.08 = 1,144.16/x
  3. Step 3: Cross multiply
    2,170.40x = 3,256.08 × 1,144.16
  4. Step 4: Simplify right side
    2,170.40x = 3,725,476.49
  5. Step 5: Solve for x
    x = 3,725,476.49/2,170.40
  6. Step 6: Final answer
    x = 1,716.49

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Half scale
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Double scale
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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.