Home / 1,970.12-2,954.58-1,689.73

Finding the Fourth Proportional to 1,970.12, 2,954.58 and 1,689.73

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Solution

The fourth proportional to 1,970.12, 2,954.58 and 1,689.73 is: 2,534.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970.12 : 2,954.58 = 1,689.73 : x
  2. Step 2: Convert to fraction form
    1,970.12/2,954.58 = 1,689.73/x
  3. Step 3: Cross multiply
    1,970.12x = 2,954.58 × 1,689.73
  4. Step 4: Simplify right side
    1,970.12x = 4,992,428.74
  5. Step 5: Solve for x
    x = 4,992,428.74/1,970.12
  6. Step 6: Final answer
    x = 2,534.07

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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.