Home / 1,669.28-2,503.73-436.81

Finding the Fourth Proportional to 1,669.28, 2,503.73 and 436.81

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Solution

The fourth proportional to 1,669.28, 2,503.73 and 436.81 is: 655.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669.28 : 2,503.73 = 436.81 : x
  2. Step 2: Convert to fraction form
    1,669.28/2,503.73 = 436.81/x
  3. Step 3: Cross multiply
    1,669.28x = 2,503.73 × 436.81
  4. Step 4: Simplify right side
    1,669.28x = 1,093,658.52
  5. Step 5: Solve for x
    x = 1,093,658.52/1,669.28
  6. Step 6: Final answer
    x = 655.17

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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.