Home / 1,156.51-1,733.68-425.89

Finding the Fourth Proportional to 1,156.51, 1,733.68 and 425.89

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Solution

The fourth proportional to 1,156.51, 1,733.68 and 425.89 is: 638.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,156.51 : 1,733.68 = 425.89 : x
  2. Step 2: Convert to fraction form
    1,156.51/1,733.68 = 425.89/x
  3. Step 3: Cross multiply
    1,156.51x = 1,733.68 × 425.89
  4. Step 4: Simplify right side
    1,156.51x = 738,356.98
  5. Step 5: Solve for x
    x = 738,356.98/1,156.51
  6. Step 6: Final answer
    x = 638.44

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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.