Home / 2,652.81-3,660.75-1,533.78

Finding the Fourth Proportional to 2,652.81, 3,660.75 and 1,533.78

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Solution

The fourth proportional to 2,652.81, 3,660.75 and 1,533.78 is: 2,116.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,652.81 : 3,660.75 = 1,533.78 : x
  2. Step 2: Convert to fraction form
    2,652.81/3,660.75 = 1,533.78/x
  3. Step 3: Cross multiply
    2,652.81x = 3,660.75 × 1,533.78
  4. Step 4: Simplify right side
    2,652.81x = 5,614,785.14
  5. Step 5: Solve for x
    x = 5,614,785.14/2,652.81
  6. Step 6: Final answer
    x = 2,116.54

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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.