Home / 1,553.11-2,327.10-858.06

Finding the Fourth Proportional to 1,553.11, 2,327.10 and 858.06

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Solution

The fourth proportional to 1,553.11, 2,327.10 and 858.06 is: 1,285.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553.11 : 2,327.10 = 858.06 : x
  2. Step 2: Convert to fraction form
    1,553.11/2,327.10 = 858.06/x
  3. Step 3: Cross multiply
    1,553.11x = 2,327.10 × 858.06
  4. Step 4: Simplify right side
    1,553.11x = 1,996,785.63
  5. Step 5: Solve for x
    x = 1,996,785.63/1,553.11
  6. Step 6: Final answer
    x = 1,285.67

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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.