Home / 1,956.71-2,699.52-1,210.43

Finding the Fourth Proportional to 1,956.71, 2,699.52 and 1,210.43

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Solution

The fourth proportional to 1,956.71, 2,699.52 and 1,210.43 is: 1,669.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,956.71 : 2,699.52 = 1,210.43 : x
  2. Step 2: Convert to fraction form
    1,956.71/2,699.52 = 1,210.43/x
  3. Step 3: Cross multiply
    1,956.71x = 2,699.52 × 1,210.43
  4. Step 4: Simplify right side
    1,956.71x = 3,267,579.99
  5. Step 5: Solve for x
    x = 3,267,579.99/1,956.71
  6. Step 6: Final answer
    x = 1,669.94

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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.