Home / 1,941.48-2,678.36-1,155.08

Finding the Fourth Proportional to 1,941.48, 2,678.36 and 1,155.08

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Solution

The fourth proportional to 1,941.48, 2,678.36 and 1,155.08 is: 1,593.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.48 : 2,678.36 = 1,155.08 : x
  2. Step 2: Convert to fraction form
    1,941.48/2,678.36 = 1,155.08/x
  3. Step 3: Cross multiply
    1,941.48x = 2,678.36 × 1,155.08
  4. Step 4: Simplify right side
    1,941.48x = 3,093,720.07
  5. Step 5: Solve for x
    x = 3,093,720.07/1,941.48
  6. Step 6: Final answer
    x = 1,593.49

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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.