Home / 1,153.68-1,731.27-423.26

Finding the Fourth Proportional to 1,153.68, 1,731.27 and 423.26

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Solution

The fourth proportional to 1,153.68, 1,731.27 and 423.26 is: 635.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153.68 : 1,731.27 = 423.26 : x
  2. Step 2: Convert to fraction form
    1,153.68/1,731.27 = 423.26/x
  3. Step 3: Cross multiply
    1,153.68x = 1,731.27 × 423.26
  4. Step 4: Simplify right side
    1,153.68x = 732,776.76
  5. Step 5: Solve for x
    x = 732,776.76/1,153.68
  6. Step 6: Final answer
    x = 635.17

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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.