Home / 1,591.07-2,195.69-892.45

Finding the Fourth Proportional to 1,591.07, 2,195.69 and 892.45

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Solution

The fourth proportional to 1,591.07, 2,195.69 and 892.45 is: 1,231.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591.07 : 2,195.69 = 892.45 : x
  2. Step 2: Convert to fraction form
    1,591.07/2,195.69 = 892.45/x
  3. Step 3: Cross multiply
    1,591.07x = 2,195.69 × 892.45
  4. Step 4: Simplify right side
    1,591.07x = 1,959,528.10
  5. Step 5: Solve for x
    x = 1,959,528.10/1,591.07
  6. Step 6: Final answer
    x = 1,231.58

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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.