Home / 1,294.05-1,941.08-1,113.69

Finding the Fourth Proportional to 1,294.05, 1,941.08 and 1,113.69

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Solution

The fourth proportional to 1,294.05, 1,941.08 and 1,113.69 is: 1,670.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294.05 : 1,941.08 = 1,113.69 : x
  2. Step 2: Convert to fraction form
    1,294.05/1,941.08 = 1,113.69/x
  3. Step 3: Cross multiply
    1,294.05x = 1,941.08 × 1,113.69
  4. Step 4: Simplify right side
    1,294.05x = 2,161,755.82
  5. Step 5: Solve for x
    x = 2,161,755.82/1,294.05
  6. Step 6: Final answer
    x = 1,670.54

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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.