Home / 1,475.49-2,213.23-379.84

Finding the Fourth Proportional to 1,475.49, 2,213.23 and 379.84

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Solution

The fourth proportional to 1,475.49, 2,213.23 and 379.84 is: 569.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.49 : 2,213.23 = 379.84 : x
  2. Step 2: Convert to fraction form
    1,475.49/2,213.23 = 379.84/x
  3. Step 3: Cross multiply
    1,475.49x = 2,213.23 × 379.84
  4. Step 4: Simplify right side
    1,475.49x = 840,671.38
  5. Step 5: Solve for x
    x = 840,671.38/1,475.49
  6. Step 6: Final answer
    x = 569.76

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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.