Home / 1,558.09-2,337.51-518.14

Finding the Fourth Proportional to 1,558.09, 2,337.51 and 518.14

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Solution

The fourth proportional to 1,558.09, 2,337.51 and 518.14 is: 777.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.09 : 2,337.51 = 518.14 : x
  2. Step 2: Convert to fraction form
    1,558.09/2,337.51 = 518.14/x
  3. Step 3: Cross multiply
    1,558.09x = 2,337.51 × 518.14
  4. Step 4: Simplify right side
    1,558.09x = 1,211,157.43
  5. Step 5: Solve for x
    x = 1,211,157.43/1,558.09
  6. Step 6: Final answer
    x = 777.33

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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.