Home / 1,479.10-2,218.58-383.46

Finding the Fourth Proportional to 1,479.10, 2,218.58 and 383.46

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Solution

The fourth proportional to 1,479.10, 2,218.58 and 383.46 is: 575.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479.10 : 2,218.58 = 383.46 : x
  2. Step 2: Convert to fraction form
    1,479.10/2,218.58 = 383.46/x
  3. Step 3: Cross multiply
    1,479.10x = 2,218.58 × 383.46
  4. Step 4: Simplify right side
    1,479.10x = 850,736.69
  5. Step 5: Solve for x
    x = 850,736.69/1,479.10
  6. Step 6: Final answer
    x = 575.17

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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.