Home / 1,966.71-2,714.28-1,127.50

Finding the Fourth Proportional to 1,966.71, 2,714.28 and 1,127.50

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Solution

The fourth proportional to 1,966.71, 2,714.28 and 1,127.50 is: 1,556.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966.71 : 2,714.28 = 1,127.50 : x
  2. Step 2: Convert to fraction form
    1,966.71/2,714.28 = 1,127.50/x
  3. Step 3: Cross multiply
    1,966.71x = 2,714.28 × 1,127.50
  4. Step 4: Simplify right side
    1,966.71x = 3,060,350.70
  5. Step 5: Solve for x
    x = 3,060,350.70/1,966.71
  6. Step 6: Final answer
    x = 1,556.08

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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.