Home / 1,555.26-2,146.20-892.08

Finding the Fourth Proportional to 1,555.26, 2,146.20 and 892.08

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Solution

The fourth proportional to 1,555.26, 2,146.20 and 892.08 is: 1,231.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.26 : 2,146.20 = 892.08 : x
  2. Step 2: Convert to fraction form
    1,555.26/2,146.20 = 892.08/x
  3. Step 3: Cross multiply
    1,555.26x = 2,146.20 × 892.08
  4. Step 4: Simplify right side
    1,555.26x = 1,914,582.10
  5. Step 5: Solve for x
    x = 1,914,582.10/1,555.26
  6. Step 6: Final answer
    x = 1,231.04

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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.