Home / 1,558.13-2,150.21-849.96

Finding the Fourth Proportional to 1,558.13, 2,150.21 and 849.96

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Solution

The fourth proportional to 1,558.13, 2,150.21 and 849.96 is: 1,172.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.13 : 2,150.21 = 849.96 : x
  2. Step 2: Convert to fraction form
    1,558.13/2,150.21 = 849.96/x
  3. Step 3: Cross multiply
    1,558.13x = 2,150.21 × 849.96
  4. Step 4: Simplify right side
    1,558.13x = 1,827,599.99
  5. Step 5: Solve for x
    x = 1,827,599.99/1,558.13
  6. Step 6: Final answer
    x = 1,172.94

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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.