Home / 1,767.12-2,646.78-1,106.84

Finding the Fourth Proportional to 1,767.12, 2,646.78 and 1,106.84

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Solution

The fourth proportional to 1,767.12, 2,646.78 and 1,106.84 is: 1,657.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,767.12 : 2,646.78 = 1,106.84 : x
  2. Step 2: Convert to fraction form
    1,767.12/2,646.78 = 1,106.84/x
  3. Step 3: Cross multiply
    1,767.12x = 2,646.78 × 1,106.84
  4. Step 4: Simplify right side
    1,767.12x = 2,929,564.44
  5. Step 5: Solve for x
    x = 2,929,564.44/1,767.12
  6. Step 6: Final answer
    x = 1,657.82

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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.