Home / 1,941.51-2,678.43-1,155.39

Finding the Fourth Proportional to 1,941.51, 2,678.43 and 1,155.39

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Solution

The fourth proportional to 1,941.51, 2,678.43 and 1,155.39 is: 1,593.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.51 : 2,678.43 = 1,155.39 : x
  2. Step 2: Convert to fraction form
    1,941.51/2,678.43 = 1,155.39/x
  3. Step 3: Cross multiply
    1,941.51x = 2,678.43 × 1,155.39
  4. Step 4: Simplify right side
    1,941.51x = 3,094,631.24
  5. Step 5: Solve for x
    x = 3,094,631.24/1,941.51
  6. Step 6: Final answer
    x = 1,593.93

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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.