Home / 1,669.11-2,503.50-938.49

Finding the Fourth Proportional to 1,669.11, 2,503.50 and 938.49

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Solution

The fourth proportional to 1,669.11, 2,503.50 and 938.49 is: 1,407.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669.11 : 2,503.50 = 938.49 : x
  2. Step 2: Convert to fraction form
    1,669.11/2,503.50 = 938.49/x
  3. Step 3: Cross multiply
    1,669.11x = 2,503.50 × 938.49
  4. Step 4: Simplify right side
    1,669.11x = 2,349,509.72
  5. Step 5: Solve for x
    x = 2,349,509.72/1,669.11
  6. Step 6: Final answer
    x = 1,407.64

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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.