Home / 1,184.47-1,632.90-949.21

Finding the Fourth Proportional to 1,184.47, 1,632.90 and 949.21

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Solution

The fourth proportional to 1,184.47, 1,632.90 and 949.21 is: 1,308.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184.47 : 1,632.90 = 949.21 : x
  2. Step 2: Convert to fraction form
    1,184.47/1,632.90 = 949.21/x
  3. Step 3: Cross multiply
    1,184.47x = 1,632.90 × 949.21
  4. Step 4: Simplify right side
    1,184.47x = 1,549,965.01
  5. Step 5: Solve for x
    x = 1,549,965.01/1,184.47
  6. Step 6: Final answer
    x = 1,308.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.