Home / 1,558.85-2,333.41-1,213.18

Finding the Fourth Proportional to 1,558.85, 2,333.41 and 1,213.18

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Solution

The fourth proportional to 1,558.85, 2,333.41 and 1,213.18 is: 1,815.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.85 : 2,333.41 = 1,213.18 : x
  2. Step 2: Convert to fraction form
    1,558.85/2,333.41 = 1,213.18/x
  3. Step 3: Cross multiply
    1,558.85x = 2,333.41 × 1,213.18
  4. Step 4: Simplify right side
    1,558.85x = 2,830,837.48
  5. Step 5: Solve for x
    x = 2,830,837.48/1,558.85
  6. Step 6: Final answer
    x = 1,815.98

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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.