Home / 1,362.08-2,043.23-388.13

Finding the Fourth Proportional to 1,362.08, 2,043.23 and 388.13

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Solution

The fourth proportional to 1,362.08, 2,043.23 and 388.13 is: 582.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362.08 : 2,043.23 = 388.13 : x
  2. Step 2: Convert to fraction form
    1,362.08/2,043.23 = 388.13/x
  3. Step 3: Cross multiply
    1,362.08x = 2,043.23 × 388.13
  4. Step 4: Simplify right side
    1,362.08x = 793,026.70
  5. Step 5: Solve for x
    x = 793,026.70/1,362.08
  6. Step 6: Final answer
    x = 582.22

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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.