Home / 1,501.32-2,252.24-405.80

Finding the Fourth Proportional to 1,501.32, 2,252.24 and 405.80

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Solution

The fourth proportional to 1,501.32, 2,252.24 and 405.80 is: 608.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,501.32 : 2,252.24 = 405.80 : x
  2. Step 2: Convert to fraction form
    1,501.32/2,252.24 = 405.80/x
  3. Step 3: Cross multiply
    1,501.32x = 2,252.24 × 405.80
  4. Step 4: Simplify right side
    1,501.32x = 913,945.70
  5. Step 5: Solve for x
    x = 913,945.70/1,501.32
  6. Step 6: Final answer
    x = 608.76

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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.