Home / 1,394.42-1,924.70-1,116.59

Finding the Fourth Proportional to 1,394.42, 1,924.70 and 1,116.59

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Solution

The fourth proportional to 1,394.42, 1,924.70 and 1,116.59 is: 1,541.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394.42 : 1,924.70 = 1,116.59 : x
  2. Step 2: Convert to fraction form
    1,394.42/1,924.70 = 1,116.59/x
  3. Step 3: Cross multiply
    1,394.42x = 1,924.70 × 1,116.59
  4. Step 4: Simplify right side
    1,394.42x = 2,149,085.57
  5. Step 5: Solve for x
    x = 2,149,085.57/1,394.42
  6. Step 6: Final answer
    x = 1,541.21

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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.