Home / 1,209.74-1,814.56-1,176.93

Finding the Fourth Proportional to 1,209.74, 1,814.56 and 1,176.93

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Solution

The fourth proportional to 1,209.74, 1,814.56 and 1,176.93 is: 1,765.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209.74 : 1,814.56 = 1,176.93 : x
  2. Step 2: Convert to fraction form
    1,209.74/1,814.56 = 1,176.93/x
  3. Step 3: Cross multiply
    1,209.74x = 1,814.56 × 1,176.93
  4. Step 4: Simplify right side
    1,209.74x = 2,135,607.16
  5. Step 5: Solve for x
    x = 2,135,607.16/1,209.74
  6. Step 6: Final answer
    x = 1,765.35

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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.