Home / 1,476.19-2,214.28-539.20

Finding the Fourth Proportional to 1,476.19, 2,214.28 and 539.20

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Solution

The fourth proportional to 1,476.19, 2,214.28 and 539.20 is: 808.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,476.19 : 2,214.28 = 539.20 : x
  2. Step 2: Convert to fraction form
    1,476.19/2,214.28 = 539.20/x
  3. Step 3: Cross multiply
    1,476.19x = 2,214.28 × 539.20
  4. Step 4: Simplify right side
    1,476.19x = 1,193,939.78
  5. Step 5: Solve for x
    x = 1,193,939.78/1,476.19
  6. Step 6: Final answer
    x = 808.80

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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.