Home / 1,415.03-2,123.04-635.59

Finding the Fourth Proportional to 1,415.03, 2,123.04 and 635.59

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Solution

The fourth proportional to 1,415.03, 2,123.04 and 635.59 is: 953.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415.03 : 2,123.04 = 635.59 : x
  2. Step 2: Convert to fraction form
    1,415.03/2,123.04 = 635.59/x
  3. Step 3: Cross multiply
    1,415.03x = 2,123.04 × 635.59
  4. Step 4: Simplify right side
    1,415.03x = 1,349,372.38
  5. Step 5: Solve for x
    x = 1,349,372.38/1,415.03
  6. Step 6: Final answer
    x = 953.60

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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.