Home / 1,555.98-2,147.24-892.94

Finding the Fourth Proportional to 1,555.98, 2,147.24 and 892.94

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Solution

The fourth proportional to 1,555.98, 2,147.24 and 892.94 is: 1,232.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.98 : 2,147.24 = 892.94 : x
  2. Step 2: Convert to fraction form
    1,555.98/2,147.24 = 892.94/x
  3. Step 3: Cross multiply
    1,555.98x = 2,147.24 × 892.94
  4. Step 4: Simplify right side
    1,555.98x = 1,917,355.04
  5. Step 5: Solve for x
    x = 1,917,355.04/1,555.98
  6. Step 6: Final answer
    x = 1,232.25

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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.