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Finding the Fourth Proportional to 2,792.68, 3,852.90 and 1,859.56

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Solution

The fourth proportional to 2,792.68, 3,852.90 and 1,859.56 is: 2,565.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,792.68 : 3,852.90 = 1,859.56 : x
  2. Step 2: Convert to fraction form
    2,792.68/3,852.90 = 1,859.56/x
  3. Step 3: Cross multiply
    2,792.68x = 3,852.90 × 1,859.56
  4. Step 4: Simplify right side
    2,792.68x = 7,164,698.72
  5. Step 5: Solve for x
    x = 7,164,698.72/2,792.68
  6. Step 6: Final answer
    x = 2,565.53

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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.