Home / 1,941.27-2,678.96-1,155.35

Finding the Fourth Proportional to 1,941.27, 2,678.96 and 1,155.35

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Solution

The fourth proportional to 1,941.27, 2,678.96 and 1,155.35 is: 1,594.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.27 : 2,678.96 = 1,155.35 : x
  2. Step 2: Convert to fraction form
    1,941.27/2,678.96 = 1,155.35/x
  3. Step 3: Cross multiply
    1,941.27x = 2,678.96 × 1,155.35
  4. Step 4: Simplify right side
    1,941.27x = 3,095,125.93
  5. Step 5: Solve for x
    x = 3,095,125.93/1,941.27
  6. Step 6: Final answer
    x = 1,594.38

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1.5x scale

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.