Home / 1,482.30-2,223.26-386.66

Finding the Fourth Proportional to 1,482.30, 2,223.26 and 386.66

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Solution

The fourth proportional to 1,482.30, 2,223.26 and 386.66 is: 579.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,482.30 : 2,223.26 = 386.66 : x
  2. Step 2: Convert to fraction form
    1,482.30/2,223.26 = 386.66/x
  3. Step 3: Cross multiply
    1,482.30x = 2,223.26 × 386.66
  4. Step 4: Simplify right side
    1,482.30x = 859,645.71
  5. Step 5: Solve for x
    x = 859,645.71/1,482.30
  6. Step 6: Final answer
    x = 579.94

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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.