Home / 1,281.35-1,921.73-501.37

Finding the Fourth Proportional to 1,281.35, 1,921.73 and 501.37

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Solution

The fourth proportional to 1,281.35, 1,921.73 and 501.37 is: 751.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281.35 : 1,921.73 = 501.37 : x
  2. Step 2: Convert to fraction form
    1,281.35/1,921.73 = 501.37/x
  3. Step 3: Cross multiply
    1,281.35x = 1,921.73 × 501.37
  4. Step 4: Simplify right side
    1,281.35x = 963,497.77
  5. Step 5: Solve for x
    x = 963,497.77/1,281.35
  6. Step 6: Final answer
    x = 751.94

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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.