Home / 2,278.50-3,145.14-1,347

Finding the Fourth Proportional to 2,278.50, 3,145.14 and 1,347

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Solution

The fourth proportional to 2,278.50, 3,145.14 and 1,347 is: 1,859.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.50 : 3,145.14 = 1,347 : x
  2. Step 2: Convert to fraction form
    2,278.50/3,145.14 = 1,347/x
  3. Step 3: Cross multiply
    2,278.50x = 3,145.14 × 1,347
  4. Step 4: Simplify right side
    2,278.50x = 4,236,503.58
  5. Step 5: Solve for x
    x = 4,236,503.58/2,278.50
  6. Step 6: Final answer
    x = 1,859.34

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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.