Home / 1,402.09-1,931.44-1,180.96

Finding the Fourth Proportional to 1,402.09, 1,931.44 and 1,180.96

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Solution

The fourth proportional to 1,402.09, 1,931.44 and 1,180.96 is: 1,626.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402.09 : 1,931.44 = 1,180.96 : x
  2. Step 2: Convert to fraction form
    1,402.09/1,931.44 = 1,180.96/x
  3. Step 3: Cross multiply
    1,402.09x = 1,931.44 × 1,180.96
  4. Step 4: Simplify right side
    1,402.09x = 2,280,953.38
  5. Step 5: Solve for x
    x = 2,280,953.38/1,402.09
  6. Step 6: Final answer
    x = 1,626.82

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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.