Home / 2,785.52-4,175.58-1,324.28

Finding the Fourth Proportional to 2,785.52, 4,175.58 and 1,324.28

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Solution

The fourth proportional to 2,785.52, 4,175.58 and 1,324.28 is: 1,985.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.52 : 4,175.58 = 1,324.28 : x
  2. Step 2: Convert to fraction form
    2,785.52/4,175.58 = 1,324.28/x
  3. Step 3: Cross multiply
    2,785.52x = 4,175.58 × 1,324.28
  4. Step 4: Simplify right side
    2,785.52x = 5,529,637.08
  5. Step 5: Solve for x
    x = 5,529,637.08/2,785.52
  6. Step 6: Final answer
    x = 1,985.14

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Double scale
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Similar ratio
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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.