Home / 1,722.39-2,580.42-1,106.17

Finding the Fourth Proportional to 1,722.39, 2,580.42 and 1,106.17

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Solution

The fourth proportional to 1,722.39, 2,580.42 and 1,106.17 is: 1,657.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.39 : 2,580.42 = 1,106.17 : x
  2. Step 2: Convert to fraction form
    1,722.39/2,580.42 = 1,106.17/x
  3. Step 3: Cross multiply
    1,722.39x = 2,580.42 × 1,106.17
  4. Step 4: Simplify right side
    1,722.39x = 2,854,383.19
  5. Step 5: Solve for x
    x = 2,854,383.19/1,722.39
  6. Step 6: Final answer
    x = 1,657.22

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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.