Home / 1,756.84-2,421.65-1,383.23

Finding the Fourth Proportional to 1,756.84, 2,421.65 and 1,383.23

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Solution

The fourth proportional to 1,756.84, 2,421.65 and 1,383.23 is: 1,906.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,756.84 : 2,421.65 = 1,383.23 : x
  2. Step 2: Convert to fraction form
    1,756.84/2,421.65 = 1,383.23/x
  3. Step 3: Cross multiply
    1,756.84x = 2,421.65 × 1,383.23
  4. Step 4: Simplify right side
    1,756.84x = 3,349,687.04
  5. Step 5: Solve for x
    x = 3,349,687.04/1,756.84
  6. Step 6: Final answer
    x = 1,906.66

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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.