Home / 1,501.21-2,251.72-461.26

Finding the Fourth Proportional to 1,501.21, 2,251.72 and 461.26

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Solution

The fourth proportional to 1,501.21, 2,251.72 and 461.26 is: 691.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,501.21 : 2,251.72 = 461.26 : x
  2. Step 2: Convert to fraction form
    1,501.21/2,251.72 = 461.26/x
  3. Step 3: Cross multiply
    1,501.21x = 2,251.72 × 461.26
  4. Step 4: Simplify right side
    1,501.21x = 1,038,628.37
  5. Step 5: Solve for x
    x = 1,038,628.37/1,501.21
  6. Step 6: Final answer
    x = 691.86

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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.