Home / 1,154.27-1,730.23-423.29

Finding the Fourth Proportional to 1,154.27, 1,730.23 and 423.29

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Solution

The fourth proportional to 1,154.27, 1,730.23 and 423.29 is: 634.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154.27 : 1,730.23 = 423.29 : x
  2. Step 2: Convert to fraction form
    1,154.27/1,730.23 = 423.29/x
  3. Step 3: Cross multiply
    1,154.27x = 1,730.23 × 423.29
  4. Step 4: Simplify right side
    1,154.27x = 732,389.06
  5. Step 5: Solve for x
    x = 732,389.06/1,154.27
  6. Step 6: Final answer
    x = 634.50

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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.