Home / 1,722.90-2,377.98-1,133.49

Finding the Fourth Proportional to 1,722.90, 2,377.98 and 1,133.49

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Solution

The fourth proportional to 1,722.90, 2,377.98 and 1,133.49 is: 1,564.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.90 : 2,377.98 = 1,133.49 : x
  2. Step 2: Convert to fraction form
    1,722.90/2,377.98 = 1,133.49/x
  3. Step 3: Cross multiply
    1,722.90x = 2,377.98 × 1,133.49
  4. Step 4: Simplify right side
    1,722.90x = 2,695,416.55
  5. Step 5: Solve for x
    x = 2,695,416.55/1,722.90
  6. Step 6: Final answer
    x = 1,564.46

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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.