Home / 1,555.32-2,146.45-892.33

Finding the Fourth Proportional to 1,555.32, 2,146.45 and 892.33

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Solution

The fourth proportional to 1,555.32, 2,146.45 and 892.33 is: 1,231.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.32 : 2,146.45 = 892.33 : x
  2. Step 2: Convert to fraction form
    1,555.32/2,146.45 = 892.33/x
  3. Step 3: Cross multiply
    1,555.32x = 2,146.45 × 892.33
  4. Step 4: Simplify right side
    1,555.32x = 1,915,341.73
  5. Step 5: Solve for x
    x = 1,915,341.73/1,555.32
  6. Step 6: Final answer
    x = 1,231.48

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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.