Home / 2,621.23-3,616.90-1,558.98

Finding the Fourth Proportional to 2,621.23, 3,616.90 and 1,558.98

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Solution

The fourth proportional to 2,621.23, 3,616.90 and 1,558.98 is: 2,151.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621.23 : 3,616.90 = 1,558.98 : x
  2. Step 2: Convert to fraction form
    2,621.23/3,616.90 = 1,558.98/x
  3. Step 3: Cross multiply
    2,621.23x = 3,616.90 × 1,558.98
  4. Step 4: Simplify right side
    2,621.23x = 5,638,648.88
  5. Step 5: Solve for x
    x = 5,638,648.88/2,621.23
  6. Step 6: Final answer
    x = 2,151.15

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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.