Home / 1,966.55-2,713.88-1,127.51

Finding the Fourth Proportional to 1,966.55, 2,713.88 and 1,127.51

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Solution

The fourth proportional to 1,966.55, 2,713.88 and 1,127.51 is: 1,555.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966.55 : 2,713.88 = 1,127.51 : x
  2. Step 2: Convert to fraction form
    1,966.55/2,713.88 = 1,127.51/x
  3. Step 3: Cross multiply
    1,966.55x = 2,713.88 × 1,127.51
  4. Step 4: Simplify right side
    1,966.55x = 3,059,927.99
  5. Step 5: Solve for x
    x = 3,059,927.99/1,966.55
  6. Step 6: Final answer
    x = 1,555.99

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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.