Home / 1,436.13-2,153.73-558.57

Finding the Fourth Proportional to 1,436.13, 2,153.73 and 558.57

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Solution

The fourth proportional to 1,436.13, 2,153.73 and 558.57 is: 837.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436.13 : 2,153.73 = 558.57 : x
  2. Step 2: Convert to fraction form
    1,436.13/2,153.73 = 558.57/x
  3. Step 3: Cross multiply
    1,436.13x = 2,153.73 × 558.57
  4. Step 4: Simplify right side
    1,436.13x = 1,202,995.40
  5. Step 5: Solve for x
    x = 1,202,995.40/1,436.13
  6. Step 6: Final answer
    x = 837.67

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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.