Home / 1,225.13-1,837.70-359.45

Finding the Fourth Proportional to 1,225.13, 1,837.70 and 359.45

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Solution

The fourth proportional to 1,225.13, 1,837.70 and 359.45 is: 539.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225.13 : 1,837.70 = 359.45 : x
  2. Step 2: Convert to fraction form
    1,225.13/1,837.70 = 359.45/x
  3. Step 3: Cross multiply
    1,225.13x = 1,837.70 × 359.45
  4. Step 4: Simplify right side
    1,225.13x = 660,550.28
  5. Step 5: Solve for x
    x = 660,550.28/1,225.13
  6. Step 6: Final answer
    x = 539.17

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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.