Home / 1,768.96-2,440.38-1,178.92

Finding the Fourth Proportional to 1,768.96, 2,440.38 and 1,178.92

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Solution

The fourth proportional to 1,768.96, 2,440.38 and 1,178.92 is: 1,626.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768.96 : 2,440.38 = 1,178.92 : x
  2. Step 2: Convert to fraction form
    1,768.96/2,440.38 = 1,178.92/x
  3. Step 3: Cross multiply
    1,768.96x = 2,440.38 × 1,178.92
  4. Step 4: Simplify right side
    1,768.96x = 2,877,012.79
  5. Step 5: Solve for x
    x = 2,877,012.79/1,768.96
  6. Step 6: Final answer
    x = 1,626.39

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1.5x scale

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.