Home / 1,941.57-2,679.47-1,057.36

Finding the Fourth Proportional to 1,941.57, 2,679.47 and 1,057.36

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Solution

The fourth proportional to 1,941.57, 2,679.47 and 1,057.36 is: 1,459.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.57 : 2,679.47 = 1,057.36 : x
  2. Step 2: Convert to fraction form
    1,941.57/2,679.47 = 1,057.36/x
  3. Step 3: Cross multiply
    1,941.57x = 2,679.47 × 1,057.36
  4. Step 4: Simplify right side
    1,941.57x = 2,833,164.40
  5. Step 5: Solve for x
    x = 2,833,164.40/1,941.57
  6. Step 6: Final answer
    x = 1,459.21

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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.