Home / 1,544.34-2,131.19-845.72

Finding the Fourth Proportional to 1,544.34, 2,131.19 and 845.72

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Solution

The fourth proportional to 1,544.34, 2,131.19 and 845.72 is: 1,167.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,544.34 : 2,131.19 = 845.72 : x
  2. Step 2: Convert to fraction form
    1,544.34/2,131.19 = 845.72/x
  3. Step 3: Cross multiply
    1,544.34x = 2,131.19 × 845.72
  4. Step 4: Simplify right side
    1,544.34x = 1,802,390.01
  5. Step 5: Solve for x
    x = 1,802,390.01/1,544.34
  6. Step 6: Final answer
    x = 1,167.09

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.