Home / 1,022.37-1,533.31-291.76

Finding the Fourth Proportional to 1,022.37, 1,533.31 and 291.76

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Solution

The fourth proportional to 1,022.37, 1,533.31 and 291.76 is: 437.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022.37 : 1,533.31 = 291.76 : x
  2. Step 2: Convert to fraction form
    1,022.37/1,533.31 = 291.76/x
  3. Step 3: Cross multiply
    1,022.37x = 1,533.31 × 291.76
  4. Step 4: Simplify right side
    1,022.37x = 447,358.53
  5. Step 5: Solve for x
    x = 447,358.53/1,022.37
  6. Step 6: Final answer
    x = 437.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.