Home / 1,533.28-2,115.87-834.64

Finding the Fourth Proportional to 1,533.28, 2,115.87 and 834.64

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Solution

The fourth proportional to 1,533.28, 2,115.87 and 834.64 is: 1,151.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,533.28 : 2,115.87 = 834.64 : x
  2. Step 2: Convert to fraction form
    1,533.28/2,115.87 = 834.64/x
  3. Step 3: Cross multiply
    1,533.28x = 2,115.87 × 834.64
  4. Step 4: Simplify right side
    1,533.28x = 1,765,989.74
  5. Step 5: Solve for x
    x = 1,765,989.74/1,533.28
  6. Step 6: Final answer
    x = 1,151.77

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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.