Home / 1,927.38-2,660.93-1,265.39

Finding the Fourth Proportional to 1,927.38, 2,660.93 and 1,265.39

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Solution

The fourth proportional to 1,927.38, 2,660.93 and 1,265.39 is: 1,746.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.38 : 2,660.93 = 1,265.39 : x
  2. Step 2: Convert to fraction form
    1,927.38/2,660.93 = 1,265.39/x
  3. Step 3: Cross multiply
    1,927.38x = 2,660.93 × 1,265.39
  4. Step 4: Simplify right side
    1,927.38x = 3,367,107.89
  5. Step 5: Solve for x
    x = 3,367,107.89/1,927.38
  6. Step 6: Final answer
    x = 1,746.99

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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.