Home / 1,888.21-2,605.26-1,178.96

Finding the Fourth Proportional to 1,888.21, 2,605.26 and 1,178.96

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Solution

The fourth proportional to 1,888.21, 2,605.26 and 1,178.96 is: 1,626.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.21 : 2,605.26 = 1,178.96 : x
  2. Step 2: Convert to fraction form
    1,888.21/2,605.26 = 1,178.96/x
  3. Step 3: Cross multiply
    1,888.21x = 2,605.26 × 1,178.96
  4. Step 4: Simplify right side
    1,888.21x = 3,071,488.72
  5. Step 5: Solve for x
    x = 3,071,488.72/1,888.21
  6. Step 6: Final answer
    x = 1,626.67

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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.