Home / 1,242.04-1,861.30-914.84

Finding the Fourth Proportional to 1,242.04, 1,861.30 and 914.84

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Solution

The fourth proportional to 1,242.04, 1,861.30 and 914.84 is: 1,370.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242.04 : 1,861.30 = 914.84 : x
  2. Step 2: Convert to fraction form
    1,242.04/1,861.30 = 914.84/x
  3. Step 3: Cross multiply
    1,242.04x = 1,861.30 × 914.84
  4. Step 4: Simplify right side
    1,242.04x = 1,702,791.69
  5. Step 5: Solve for x
    x = 1,702,791.69/1,242.04
  6. Step 6: Final answer
    x = 1,370.96

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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.