Home / 2,851.36-4,277.28-1,312

Finding the Fourth Proportional to 2,851.36, 4,277.28 and 1,312

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Solution

The fourth proportional to 2,851.36, 4,277.28 and 1,312 is: 1,968.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.36 : 4,277.28 = 1,312 : x
  2. Step 2: Convert to fraction form
    2,851.36/4,277.28 = 1,312/x
  3. Step 3: Cross multiply
    2,851.36x = 4,277.28 × 1,312
  4. Step 4: Simplify right side
    2,851.36x = 5,611,791.36
  5. Step 5: Solve for x
    x = 5,611,791.36/2,851.36
  6. Step 6: Final answer
    x = 1,968.11

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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.