Home / 1,405.70-1,941.27-1,159.46

Finding the Fourth Proportional to 1,405.70, 1,941.27 and 1,159.46

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Solution

The fourth proportional to 1,405.70, 1,941.27 and 1,159.46 is: 1,601.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405.70 : 1,941.27 = 1,159.46 : x
  2. Step 2: Convert to fraction form
    1,405.70/1,941.27 = 1,159.46/x
  3. Step 3: Cross multiply
    1,405.70x = 1,941.27 × 1,159.46
  4. Step 4: Simplify right side
    1,405.70x = 2,250,824.91
  5. Step 5: Solve for x
    x = 2,250,824.91/1,405.70
  6. Step 6: Final answer
    x = 1,601.21

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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.