Home / 2,851.40-4,277.70-1,207.94

Finding the Fourth Proportional to 2,851.40, 4,277.70 and 1,207.94

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Solution

The fourth proportional to 2,851.40, 4,277.70 and 1,207.94 is: 1,812.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.40 : 4,277.70 = 1,207.94 : x
  2. Step 2: Convert to fraction form
    2,851.40/4,277.70 = 1,207.94/x
  3. Step 3: Cross multiply
    2,851.40x = 4,277.70 × 1,207.94
  4. Step 4: Simplify right side
    2,851.40x = 5,167,204.94
  5. Step 5: Solve for x
    x = 5,167,204.94/2,851.40
  6. Step 6: Final answer
    x = 1,812.16

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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.