Home / 1,977.84-2,966.46-1,245.18

Finding the Fourth Proportional to 1,977.84, 2,966.46 and 1,245.18

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Solution

The fourth proportional to 1,977.84, 2,966.46 and 1,245.18 is: 1,867.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977.84 : 2,966.46 = 1,245.18 : x
  2. Step 2: Convert to fraction form
    1,977.84/2,966.46 = 1,245.18/x
  3. Step 3: Cross multiply
    1,977.84x = 2,966.46 × 1,245.18
  4. Step 4: Simplify right side
    1,977.84x = 3,693,776.66
  5. Step 5: Solve for x
    x = 3,693,776.66/1,977.84
  6. Step 6: Final answer
    x = 1,867.58

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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.