Home / 2,742.55-3,782.76-1,623.53

Finding the Fourth Proportional to 2,742.55, 3,782.76 and 1,623.53

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Solution

The fourth proportional to 2,742.55, 3,782.76 and 1,623.53 is: 2,239.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.55 : 3,782.76 = 1,623.53 : x
  2. Step 2: Convert to fraction form
    2,742.55/3,782.76 = 1,623.53/x
  3. Step 3: Cross multiply
    2,742.55x = 3,782.76 × 1,623.53
  4. Step 4: Simplify right side
    2,742.55x = 6,141,424.34
  5. Step 5: Solve for x
    x = 6,141,424.34/2,742.55
  6. Step 6: Final answer
    x = 2,239.31

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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.