Home / 1,482.13-2,223.33-386.50

Finding the Fourth Proportional to 1,482.13, 2,223.33 and 386.50

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Solution

The fourth proportional to 1,482.13, 2,223.33 and 386.50 is: 579.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,482.13 : 2,223.33 = 386.50 : x
  2. Step 2: Convert to fraction form
    1,482.13/2,223.33 = 386.50/x
  3. Step 3: Cross multiply
    1,482.13x = 2,223.33 × 386.50
  4. Step 4: Simplify right side
    1,482.13x = 859,317.05
  5. Step 5: Solve for x
    x = 859,317.05/1,482.13
  6. Step 6: Final answer
    x = 579.79

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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.