Home / 1,022.09-1,529.63-631.94

Finding the Fourth Proportional to 1,022.09, 1,529.63 and 631.94

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Solution

The fourth proportional to 1,022.09, 1,529.63 and 631.94 is: 945.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022.09 : 1,529.63 = 631.94 : x
  2. Step 2: Convert to fraction form
    1,022.09/1,529.63 = 631.94/x
  3. Step 3: Cross multiply
    1,022.09x = 1,529.63 × 631.94
  4. Step 4: Simplify right side
    1,022.09x = 966,631.22
  5. Step 5: Solve for x
    x = 966,631.22/1,022.09
  6. Step 6: Final answer
    x = 945.74

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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.