Home / 2,740.92-3,783.78-1,858.14

Finding the Fourth Proportional to 2,740.92, 3,783.78 and 1,858.14

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Solution

The fourth proportional to 2,740.92, 3,783.78 and 1,858.14 is: 2,565.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740.92 : 3,783.78 = 1,858.14 : x
  2. Step 2: Convert to fraction form
    2,740.92/3,783.78 = 1,858.14/x
  3. Step 3: Cross multiply
    2,740.92x = 3,783.78 × 1,858.14
  4. Step 4: Simplify right side
    2,740.92x = 7,030,792.97
  5. Step 5: Solve for x
    x = 7,030,792.97/2,740.92
  6. Step 6: Final answer
    x = 2,565.12

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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.