Home / 1,409.19-1,943.42-1,173.92

Finding the Fourth Proportional to 1,409.19, 1,943.42 and 1,173.92

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Solution

The fourth proportional to 1,409.19, 1,943.42 and 1,173.92 is: 1,618.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409.19 : 1,943.42 = 1,173.92 : x
  2. Step 2: Convert to fraction form
    1,409.19/1,943.42 = 1,173.92/x
  3. Step 3: Cross multiply
    1,409.19x = 1,943.42 × 1,173.92
  4. Step 4: Simplify right side
    1,409.19x = 2,281,404.02
  5. Step 5: Solve for x
    x = 2,281,404.02/1,409.19
  6. Step 6: Final answer
    x = 1,618.95

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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.