Home / 3,749.90-5,621.34-1,557.23

Finding the Fourth Proportional to 3,749.90, 5,621.34 and 1,557.23

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Solution

The fourth proportional to 3,749.90, 5,621.34 and 1,557.23 is: 2,334.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,749.90 : 5,621.34 = 1,557.23 : x
  2. Step 2: Convert to fraction form
    3,749.90/5,621.34 = 1,557.23/x
  3. Step 3: Cross multiply
    3,749.90x = 5,621.34 × 1,557.23
  4. Step 4: Simplify right side
    3,749.90x = 8,753,719.29
  5. Step 5: Solve for x
    x = 8,753,719.29/3,749.90
  6. Step 6: Final answer
    x = 2,334.39

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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.