Home / 2,792.13-3,853.14-1,907.91

Finding the Fourth Proportional to 2,792.13, 3,853.14 and 1,907.91

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Solution

The fourth proportional to 2,792.13, 3,853.14 and 1,907.91 is: 2,632.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,792.13 : 3,853.14 = 1,907.91 : x
  2. Step 2: Convert to fraction form
    2,792.13/3,853.14 = 1,907.91/x
  3. Step 3: Cross multiply
    2,792.13x = 3,853.14 × 1,907.91
  4. Step 4: Simplify right side
    2,792.13x = 7,351,444.34
  5. Step 5: Solve for x
    x = 7,351,444.34/2,792.13
  6. Step 6: Final answer
    x = 2,632.92

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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.