Home / 1,482.24-2,223.36-386.61

Finding the Fourth Proportional to 1,482.24, 2,223.36 and 386.61

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Solution

The fourth proportional to 1,482.24, 2,223.36 and 386.61 is: 579.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,482.24 : 2,223.36 = 386.61 : x
  2. Step 2: Convert to fraction form
    1,482.24/2,223.36 = 386.61/x
  3. Step 3: Cross multiply
    1,482.24x = 2,223.36 × 386.61
  4. Step 4: Simplify right side
    1,482.24x = 859,573.21
  5. Step 5: Solve for x
    x = 859,573.21/1,482.24
  6. Step 6: Final answer
    x = 579.92

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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.